Emerson PACSystems RSTi-EP User manual

QUICK START GUIDE

GFK-3039C

Apr 2021

PACSystemsTM RSTi-EP

STANDALONE 1GHz PROGRAMMABLE CONTROLLER

(EPSCPE115)

 
i PACSystems™ RSTi-EP EPSCPE115 Standalone CPU Quick Start Guide GFK-3039C 
Contents 
User Features................................................................................................... ii 
Membrane Run/Stop Pushbutton ...................................................................................... 3 
LED Indicators (LEDs) ......................................................................................................... 3 
Ethernet Ports.................................................................................................................... 5 
USB Port............................................................................................................................. 9 
Serial Ports......................................................................................................................... 9 
Hardware Installation .................................................................................... 10 
Initial Checks.................................................................................................................... 10 
Installation & Mounting ................................................................................................... 11 
Grounding ....................................................................................................................... 14 
Module Start-up ............................................................................................ 15 
Power-Up Time................................................................................................................ 15 
Programming the CPE115 .............................................................................. 17 
Backwards Compatibility ................................................................................................. 17 
PROFINET Controller Configuration................................................................................. 17 
OPC UA Server Configuration........................................................................................... 18 
Serial Port Configuration.................................................................................................. 18 
Performance with Typical Configuration ........................................................ 20 
Replacement of Internal Supercapacitor......................................................... 22 
Troubleshooting FAQs ................................................................................... 25 
Additional Information .................................................................................. 29 

ii PACSystems™ RSTi-EP EPSCPE115 Standalone CPU Quick Start Guide GFK-3039C

Caution & Warning Notes as Used in this Publication

WARNING

Warning notices are used in this publication to emphasize that hazardous voltages,

currents, temperatures, or other conditions that could cause personal injury exist in this

equipment or may be associated with its use.

In situations where inattention could cause either personal injury or damage to

equipment, a Warning notice is used.

CAUTION

Caution notices are used where equipment might be damaged if care is not taken.

These instructions do not purport to cover all details or variations in equipment, nor to provide

for every possible contingency to be met during installation, operation, and maintenance. The

information is supplied for informational purposes only, and Emerson makes no warranty as to

the accuracy of the information included herein. Changes, modifications, and/or improvements

to equipment and specifications are made periodically and these changes may or may not be

reflected herein. It is understood that Emerson may make changes, modifications, or

improvements to the equipment referenced herein or to the document itself at any time. This

document is intended for trained personnel familiar with the Emerson products referenced

herein.

Emerson may have patents or pending patent applications covering subject matter in this

document. The furnishing of this document does not provide any license whatsoever to any of

these patents.

Emerson provides the following document and the information included therein as-is and

without warranty of any kind, expressed or implied, including but not limited to any implied

statutory warranty of merchantability or fitness for particular purpose.

1 PACSystems™ RSTi-EP EPSCPE115 Standalone CPU Quick Start Guide GFK-3039C

User Features

The PACSystems RSTi-EP EPSCPE115 (or CPE115), is an enhanced performance

standalone 1GHz programmable controller equipped with 1.5 MB of user

memory and four Ethernet ports. It is designed to run real-time, deterministic

control applications and supports distributed I/O.

LAN1 is a dedicated high-speed Ethernet port. LAN2 is comprised of 3 switched

ports configurable as either an embedded Ethernet controller or an embedded

PROFINET controller supporting PROFINET simplex mode. All four ports are

located on the front panel, as shown in Figure 1.

The CPE115 is programmed and configured over Ethernet via PAC Machine

Edition (PME) software. It can control/process up to 2K I/O points.

Features include:

•A built-in PACSystems RSTi-EP PLC CPU

oUser may program in Ladder Diagram, Structured Text, or Function

Block Diagram.

oContains 1.5Mbytes of configurable data and program memory.

oSupports auto-located Symbolic Variables that can use any amount of

user memory.

oReference table sizes include 2k bits for discrete %I and %Q and up to 32k

words each for analog %AI and %AQ. Bulk memory (%W) also supported

for data exchanges.

oSupports up to 512 program blocks. Maximum block size is 128KB.

•The embedded communications interface has dedicated processing

capability, which permits the CPU to independently support LAN1 and LAN2

with:

oUp to 16 combined SRTP Server and Modbus TCP Server connections out

of which Modbus TCP cannot exceed more than 8 connections (or) up to

2 PACSystems™ RSTi-EP EPSCPE115 Standalone CPU Quick Start Guide GFK-3039C

16 simultaneous SRTP Server connections (or) up to 8 simultaneous

Modbus TCP Server connections.

o8 Clients total are permitted and may be a combination of SRTP or

Modbus/TCP.

oUp to 8 simultaneous Class 1 Ethernet Global Data (EGD) exchanges.

oWhen used in combination for optimal performance, use must not exceed

4 Channels for Server (Modbus/SRTP) and 4 Channels for client

(Modbus/SRTP), 8 PROFINET nodes and 8 EGD data exchanges.

•Ability to display serial number and date code in PME Device Information Details.

•Media Redundancy Protocol (MRP) allows the CPE115 to participate in a

PROFINET I/O network with MRP ring technology. This eliminates the I/O

network as a single point of failure. The CPE115 may be used as either a Media

Redundancy Manager or Media Redundancy Client.

•OPC UA Server supports up to 2 concurrent sessions with up to 4 concurrent

variable subscriptions and up to 1000 variables.

•Modbus RTU Slave and Serial, I/O support on two serial ports i.e. RS-232 and RS-

485 with both 2-wire and 4 -wire interface. These ports are located on the

underside of the controller and do not provide any type of isolation.

•Operating temperature range -40 °C to 70 °C (-40 °F to 158 °F).

•Supports 32-bit C blocks compiled with the C Toolkit Version 8.10 or later. All

pre-existing C blocks must be recompiled before downloading.

•Supports Authorized Firmware Update feature. Users may now authorize access

to firmware updates using a custom password. Details are included in the

revised firmware update instructions.

3 PACSystems™ RSTi-EP EPSCPE115 Standalone CPU Quick Start Guide GFK-3039C

Membrane Run/Stop Pushbutton

The Membrane Run/Stop push button is located at the

bottom right of the front panel (see Figure 1). Pressing

it briefly, will change the state of CPU from the current

state to the next state. It acts as a toggle switch, as

shown in the following state diagram:

Note: The Run/Stop

switch is enabled by

default; it can be

disabled in PME

Hardware

Configuration (HWC)

settings.

LED Indicators (LEDs)

Ethernet Status Indicators

For each port of LAN1 and LAN2, there are two LEDs (Yellow/Green) embedded in the

RJ-45 connectors. The green LED indicates an Ethernet connection has been

established on that port. The yellow LED indicates packet traffic on that port.

Figure 1: Run/Stop

Pushbutton

4 PACSystems™ RSTi-EP EPSCPE115 Standalone CPU Quick Start Guide GFK-3039C

Module Status Indicators

As shown in Figure 2, there are three LEDs

located at the bottom right of the front panel,

just below the Membrane Push Button.

The following tables describe the behavior of

each module LED:

LED

LED State

Operating State (at Power-Up)

RUN

Blinking; All

other LEDs off

This LED indicates the status of PLC during powering

up. It starts blinking 6 seconds after applying power to

the PLC and remains in this state for up to 15 seconds.

After this all LEDs turn off and will remain in this state

until PLC is ready.

LED

LED State

Operating State (after Power-Up)

On Green

PLC has passed its power-up diagnostics and is

functioning properly.

Off

Power is not applied, or PLC has a problem.

Blinking; All

other LEDs

off

PLC in STOP/Halt state; possible watchdog timer fault. If

the programmer cannot connect, cycle power and refer

to the fault tables. Refer to Section 0. Troubleshooting

FAQs for more details.

RUN

On Green

PLC is in RUN mode.

Off

PLC is in STOP mode.

Figure 2: LED Indicators

5 PACSystems™ RSTi-EP EPSCPE115 Standalone CPU Quick Start Guide GFK-3039C

LED

LED State

Operating State (after Power-Up)

Blinking; All

other LEDs

off

Indicates that PLC has encountered a fatal error and is

blinking the error code.

Fault

On Red

PLC is in STOP/Faulted mode: a fatal fault has occurred.

Refer to Troubleshooting FAQs for more details.

Off

No fatal faults detected.

Ethernet Ports

CPE115 provides two independent Fast Ethernet LANs.

•LAN1 has only one port and is dedicated to the embedded Ethernet controller.

•LAN2 is comprised of 3 switched ports, each configurable either as a second

embedded Ethernet controller or as an embedded PROFINET controller.

Use PME to configure the operation of the ports.

All the Ethernet ports of both the LAN1 and LAN2 are capable of automatically sensing

the link data rate (10 Mbps or 100 Mbps), communications mode (half-duplex or full-

duplex), and cabling arrangement (straight-through or crossover).

To establish Ethernet communications between the PME programming software and

the CPE115, you first need to set a valid IP address.

CPE115

LAN1

LAN2

Default IP Address:

192.168.0.100

0.0.0.0

Subnet Mask:

255.255.255.0

0.0.0.0

Gateway:

0.0.0.0

6 PACSystems™ RSTi-EP EPSCPE115 Standalone CPU Quick Start Guide GFK-3039C

Note:

•LAN2 will not be operational unless it is configured from the

programmer with a valid IP address.

•Care must be taken when assigning IP Addresses and subnet masks to

each LAN so that an overlapping IP subnet is not created. Intermittent or

no Ethernet communication may result if an overlapping IP subnet is

created and the two interfaces are NOT connected (cabled) to the same

physical network.

•By default, PME prohibits configuring both LAN interfaces on an

overlapping IP subnet. (This may be changed by going to Controller

General Options and changing the Multiple Embedded LANs on Same

Subnet to Show as Warning.)

Typical Network Application

A typical application will take advantage of the two independent LANs. The dedicated

LAN 1 port will be used for communications with plant-level or supervisory layers. The

switched LAN 2 will be used to communicate with devices over PROFINET within the

manufacturing cell or process.

7 PACSystems™ RSTi-EP EPSCPE115 Standalone CPU Quick Start Guide GFK-3039C

Figure 3: Typical Multi-Tier LAN Application (Star/Bus topology)

Typical Multilevel Network Application

Whenever CPE115 is configured for MRP only, Ethernet Port2 & Port3 of LAN2 may be

used to form a ring. Ethernet Port4 of LAN2 may still be used either to connect to the

programmer, to a simplex PROFINET device or to any other supported Ethernet

protocols.

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