Allen-Bradley SLC 500 Series User manual

QUICKDESIGNER Allen-Bradley •

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Allen-Bradley

Allen-Bradley SLC 500

Setup for using an A-B SLC 500

Use the following procedure to ensure your target device is setup properly for the Allen-Bradley SLC

500. The procedure is in condensed format. Only the required settings are outlined. For additional

details, see Creating a New Project beginning on page 3.

Project Setup

The drawing is a diagram of the Project Setup dialog box. Each button will display an additional dialog

box. Many settings are options and are not required to establish communications. Verify the Project

name and Display Device Model are correct. Leave the Initial Screen name blank.

Project name:

Display Device

Model

Initial Screen

Display Touch Print

PLC & Protocols

CN1 PLC Type PLC Protocol name appears here

Port Protocol System

OK Cancel Help

Project Setup

Default Panel Name

Screen Saver Timeout

Panel Trigger Tag

Watchdog Tag

Watchdog timeout

PLC Protocol setup

Disable Beeper

Electrical Format

Serial Parameters

Project name appears in this field

Model description appears in this field

Project Notes

Print (Inactive)

PLC Type

Select the PLC type from the list box. (AB SLC DH485). See PLC Type on page 5.

12 •

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•Allen-Bradley QUICKDESIGNER

Port Button

Click the Port button to display the Serial Parameters dialog. The port values are automatically set to

standard default values. See Serial Parameters on page 6. The following settings are recommended for

AB SLC DH485.

Elect. Format RS422 Half Duplex (When using the HMI-CAB-C83 Cable)

Elect. Format RS232 (When using the HMI-CAB-C84 Cable)

Baud Rate 19200

Data Bits 8

Parity Even

Stop Bits 1

Handshake None

Protocol Button

Click the Protocol button to display the dialog box associated with the selected PLC.

The Source ID is the target display address on the DH485 network. The Destination ID is the PLC

address where the target display will get variable data. The Maximum node ID is the highest available

address on the DH485 network. The maximum ID should be set to the lowest possible number. Enter

Timeout in seconds. Click OK to return to the Project Setup dialog box.

Protected Files

Processor files with Owner set cannot be written to by QUICKPANEL







The Set and Clear Owner function allows a terminal to "own" one or more processor files on the

network. Ownership means that as long as the owner is active on the network, other terminals can not

access the on-line functions of the owned processor files. Note that only a programmer can own a node.

In the following example, station 1 is owned by node 0. Notice station node 1 has a max. address 31

followed by a forward slash and then the ownership node. If you see this on the display, a

QUICKPANELcannot write to that station. You must clear the owner.

0 TCP (31)

1 5/02 (31/0)

2 Term (31)

Connecting to the SLC 500

A single point connection is simply one target display connected directly to the program port of a single

SLC 500. This connection is made using the HMI-CAB-C83 cable.

QUICKDESIGNER Allen-Bradley •

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•13

HMI-CAB-C83 Cable

This cable connects the target display serial port to the Allen-Bradley SLC 500 Programming Port.

TO TCP DEVICE

TO SLC 500

25-PIN MALE

8-PIN MODULAR PHONE

RJ-45

PROGRAM PORT

HMI-CAB-C83/A

RJ-45

shield

(--)

red

black

green TOP

(+) 11

GND 1

SHIELD orange

blue

white

brown

PROPRIETARY INFORMATION

THIS INFORMATION IS PROVIDED AS A

CONVENIENCE TO OUR CUSTOMERS.

YOU ARE NOT AUTHORIZED TO

CONSTRUCT THIS CABLE.

UNAUTHORIZED CABLES ARE

NOT SUPPORTED BY TOTAL CONTROL.

SLC 500 Network Connection for Programming Equipment (DH485)

This connection allows two devices to be connected to the PLC. In this case, a programming terminal

can be connected to the PLC using a 1747-PIC Interface Converter connected to the HMI-CAB-C84

cable.

The drawing shows the connections for adding a second device to the network connection.

HMI-CAB-C84

TO SLC 500

PROGRAM PORT

QUICKPANEL jr. SLC 500 Fixed I/O Controller

TO TCP DEVICE

TO: Allen-Bradley 1747-PIC

Interface Converter

14 •

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•Allen-Bradley QUICKDESIGNER

HMI-CAB-C84 Cable

This cable connects the target display serial port to the Allen-Bradley SLC 500 Programming Port. The

cable is designed to allow connection to additional devices such as an Allen-Bradley 1747-PIC

Interface Converter.

Warning: The maximum length of this cable is 6 feet. Do not attempt to make it longer.

25-PIN MALE

8-PIN MODULAR PHONE(FEMALE)

HMI-CAB-C84/A

8-PIN MODULAR PHONE(MALE)

RJ-45

TOP

25-pin male D

RS232

RS422

CIRCUIT

BOARD shield

red

black

green

orange

blue

white

brown

-6

-1 (+)

-2 ( - )

-7 (G)

-8

-5 (E)

-4

-3

shield

red

black

green

orange

blue

white

brown

-6

-1

-2

-7

-8

-5

-4

-3

8-PIN MODULAR

PHONE JACK

8-PIN MODULAR

PHONE PLUG

CABLE LENGTH = 6'

CABLE LENGTH = 1'

PROPRIETARY INFORMATION

THIS INFORMATION IS PROVIDED AS A CONVENIENCE

TO OUR CUSTOMERS. YOU ARE NOT AUTHORIZED TO

CONSTRUCT THIS CABLE. UNAUTHORIZED CABLES ARE

NOT SUPPORTED BY TOTAL CONTROL.

THE RS232 CONVERTER CIRCUITS ARE CONTAINED ON

A CIRCUIT BOARD WITHIN THE 25-PIN D-SHELL. THE

ELECTRONIC CIRCUIT PROVIDES NETWORK CONTROL.

THE CIRCUIT DIAGRAM IS PROPRIETARY INFORMATION.

THE CABLE IS LICENSED FROM ALLEN-BRADLEY.

SLC 500 Network Connection using 1747 AIC Link Couplers (DH485)

QUICKDESIGNER Allen-Bradley •

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•15

Connecting to a 1747 AIC Module (DH485)

Connect the HMI-CAB-C84 cable to the 1747 AIC Module as shown below.

HMI-CAB-C84

TO SLC 500

PROGRAM PORT

QUICKPANEL jr.

TO TCP DEVICE

TO: Allen-Bradley 1747-PIC

Interface Converter

Peripheral - J2

DH485 Interface

CPU -J1

1747-AIC MODULE

SLC 5/03 and SLC 5/04 Channel 0 Connection

The SLC 5/03 and SLC 5/04 processors let you operate DF1 communication protocol by means of the

RS-232 communication port, channel 0. In addition, the SLC 5/03 and SLC 5/04 processors support

DH485 communication via channel 0.

The 9-Pin connector on the SLC 5/03 and SLC 5/04 processors is programmable. The SLC 5/03 and

SLC 5/04 processors can be configured for port-to-port connection using the HMI-CAB-C52 cable.

Channel 0 must be set up as a DH485 master. This configuration can only read/write variables in the

local PLC. Since it is not dependent on network loading, this configuration will provide quick display

updates.

16 •

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•Allen-Bradley QUICKDESIGNER

HMI-CAB-C52 Cable

This cable is used to connect the target display to a SLC 5/03 and SLC 5/04 RS232 Channel 0 Port.

A label is placed on each end of the cable to indicate which device should be connected to that end.

One of the labels will also indicate the cable part number so you can quickly verify you are using the

right cable for your application. You can make your own cable using the following wiring diagram.

TO TCP DEVICE

TO PLC PORT

SHIELD

25 PIN MALE

9 PIN FEMALE

HMI-CAB-C52

TO PLC PORT

TO TCP DEVICE 1

SLC 5/03 and SLC 5/04 DH485 Connections

You can connect channel 0 of the SLC 5/03 and SLC 5/04 modules to the 1747-PIC to make a

connection to the DH485 network.

SLC 500 5/02 Modular Controller

QUICK PANEL Jr.

1747-AIC Link Coupler

HMI-CAB-C84

1747-PIC

Programming

Station

SLC5/04 Modular Controller

1747-PIC

SLC 5/04 CPU

RUN

FLT

BATT

FORCE

DH+

RS232

RUN REM PROG

Setup for using a SLC 5/03 and SLC 5/04 Channel 0

The procedure for setup of an AB SLC 5/03 Channel 0 is basically the same as for SLC500 DH485.

The Electrical Format must be set to RS232.

QUICKDESIGNER Allen-Bradley •

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SLC 5/04 Data Highway Plus

Data Highway Plus implements peer-to-peer communication with a token-passing scheme to rotate link

mastership among a maximum of 64 nodes. Since this method does not require polling, it helps provide

time-efficient reliable data transport.

The SLC 5/04 processor lets you operate DH+ communication protocol by means of the DH+

communication channel 1. The SLC 5/04 also supports full-duplex DF1 protocol using the DF1

channel 0.

The 3-pin connector is for actual DH+ communication and the 8-pin connector is for monitoring DH+

communication.

The DH+ LED provides an indication of the condition of the network communication. The color can be

green or red. A steady on condition indicates the processor is actively communicating on the network.

Flashing green indicates there are no active nodes on the network. Flashing red indicates there are

duplicate nodes on the link with the same node address.

SLC 5/04 CPU

RUN

FLT

BATT

FORCE

DH+

RS232

RUN REM PROG

DH+

Channel 1

DF1

Channel 0

SLC 5/04 DH+ Connection

The drawing shows a possible configuration for DH+.

SLC5/04 Modular Controller

SLC 5/04 CPU

RUN

FLT

BATT

FORCE

DH+

RS232

RUN REM PROG

PLC 5/15

LINE 2 BLUE

LINE 1 CLEAR

SHIELD

CN1

QUICKPANEL

DATA

HIGHWAY

PLUS

MODULE

18 •

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•Allen-Bradley QUICKDESIGNER

SLC 500 Tag Variables for DH485 Protocol

The following chart lists the legal tag variable names that can be used with the SLC 500 series. The

target display talks to the SLC500 using the DH485 protocol. The DH485 protocol requires each

device to have a node address. The Source ID is the target display node address and the Destination ID

is the node address for the SLC. (See the "Setup for using an AB SLC 500 PLC" section for details

about entering the source and destination ID's).

When there is a single point connection between a target display and a SLC500, the destination ID

(node address for SLC) becomes the default address for all variables. That is, if you use the tag variable

N7:100, the target display knows that this variable is located at the destination node address.

When the target display is connected to a DH485 network that includes multiple SLC nodes, there is an

optional variable naming element that will allow you to read information from any SLC node. The

additional element is _D, where the underscore D indicates a node address other than the Destination

ID node address.

In this example, the Source ID (target display address) has been set to 0 and the Destination ID (SLC

node address) has been set to 1. There is an additional SLC on the DH485 network located at node

address 3. To read information from node address 1, the variable would be N7:100. Remember that the

Destination ID is the default node address. To read information from node address 3, the variable

would be N7:100_3. The general format for tag variables is shown below.

N7:100/00_D Destination Node Address

Bit Address

Element

File Type

SLC 500 Tag Variables for DH+ Protocol

The DH+ tag variables are the same as the PLC5 tag variables except for the following items.

1. You cannot read or write Input (I) or Output (O) variables in the SLC 5/04.

2. The SLC 5/04 can read/write string variables (ST) while the PLC 5 cannot.

QUICKDESIGNER Allen-Bradley •

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Tag Variable Table

File Type File # Element Bit Range Write Value

O0:00 0 0-255 (dec) /0 - /15 Y -32768 to 32767

OD:00 0 0-255 (dec) /0 - /15 Y -32768 to 32767

OO:00 0 0-377 (oct) /0 - /17 Y -32768 to 32767

I1:00 1 0-255 (dec) /0 - /15 N -32768 to 32767

ID:00 1 0-255 (dec) /0 - /15 N -32768 to 32767

IO:00 1 0-377 (oct) /0 - /17 N -32768 to 32767

S2:00 or S: 2 0-15 5/01(2) /0 - /15 N -32768 to 32767

0-32 5/02(2)

0-83 5/03(2)

B3: or Bn: n:=9-255 0-255 /0 - /15 Y -32768 to 32767

T4: or Tn: n:=9-255 0-255.ACC Y 0-32767

0-255.PRE Y 0-32767

0-255.EN Y 0-1

0-255.TT Y 0-1

0-255.DN Y 0-1

C5: or Cn: n:=9-255 0-255.ACC Y -32768 to 32767

0-255.PRE Y -32768 to 32767

0-255.DN Y 0-1

0-255.CU Y 0-1

0-255.CD Y 0-1

0-255.OV Y 0-1

0-255.UN Y 0-1

0-255.UA Y 0-1

R6: or Rn: n:=9-255 0-255.LEN Y -32768 to 32767

0-255.POS Y -32768 to 32767

0-255.DN Y 0-1

0-255.EN Y 0-1

0-255.ER Y 0-1

0-255.UL Y 0-1

0-255.IN Y 0-1

0-255.FD Y 0-1

N7: or Nn: n:=9-255 0-255 /0 - /15 Y -32768 to 32767

ND7: or NDn:n:=9-255 0-255 Y -2147M to 4294M

NL7: or NLn: n:=9-255 0-255 Y -2147M to 4294M

F8: or Fn: n:=9-255 0-255 NS Y -2147M to 4294M

D9: or Dn: n:=9-255 0-255 NS Y 0-9999

A9: or An: n:=9-255 0-255 NS Y Null - ASCII

ST9: or STn: 1-9999 NS Y 0-65535

Note 1: File numbers other than the default value shown are 9-255. Ex: B5:0 would be invalid.

Note 2: Address range for I and O are in decimal as maped in the M files. Address Max for S is dependent on the

PLC.

Note 3: Bits may wrap into other words. Ex: B3:5/41 = B3:7/9

Note 4: Integer types (range –32768 to 32767) may be configured as unsigned (range 0 to 65535)

Note 5: Node ID Max. is 254 for the SLC DF1 and 31 for the SLC 485.

20 •

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•Allen-Bradley QUICKDESIGNER

Additional Information

Network Performance

The following are major configuration factors that have a significant effect on network performance:

•The number of nodes on the link

•The addresses of those nodes

•The maximum node address selection

The number of nodes on the link directly affects the data transfer time between nodes. Unnecessary

nodes slow the data transfer rate. The maximum number of nodes on the link is 32.

The best link performance occurs when node addresses start at 0 and are assigned in sequential order.

Also, initiators such as personal computers should be assigned the lowest numbered addresses to

minimize the time required to initialize the link. If all nodes are expected to be connected at all times,

this is really all you need to do.

The maximum node address parameter should be set as low as possible. This minimizes the amount of

time used in soliciting successors when initializing the link. If all nodes are addressed in sequence from

0, and the maximum node address is equal to the address of the highest addressed node, the token

rotation will improve by the amount of time required to transmit a solicit successor packet plus the slot

timeout value.

NOTE - The SLC500 processors set the maximum node address to 31 when power is cycled increasing

initialization and response time of the link.

DH-485 Cable

The suggested DH-485 communication cable is BELDEN #9842 cable. The cable is jacketed and

shielded with two twisted wire pair and a drain wire.

DH-485 Connections

One (only one) of the Link Couplers at the end of the link must have Terminals 1 and 2 of the link

connector jumpered together. This provides an Earth Ground connection for the shield of the

communications cable.

Link Couplers at both ends of the link must have Terminals 5 and 6 of the link connectors jumpered

together. This connects the termination impedance that is built into each link coupler as required by the

DH-485 specification.

6 - TERM

5 - A

4 - B

3 - COMMON

2 - SHIELD

1 - CHS GND

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