Eaton ELCM Series User manual

Eaton Logic Controller

ELCM Analog Input Modules

INSTRUCTION SHEET

[Applicable Analog Input modules]

ELCM-AN04ANNN

IL05004002E

002-1300120-02

2010-12-10

5011699001-MAN1

- 1 -

The ELCM-AN04ANNN analog input module supports 4 analog input

channels (either voltage or current) and converts these signals into 16-bit

digital data. You can select voltage inputs or current inputs by the way you

connect your inputs. In addition, you can access the data in the module by

using the FROM/TO instructions, or read the average value of channels

directly by using the MOV instruction (Please refer to allocation of special

registers D9900 ~ D9999).

This instruction sheet provides only information on the electrical

specification, general functions, installation and wiring. It should be read

and understood before attempting to install or use the modules.

Further information can be found in the “ELC Programming Manual” and

“ELC Special Modules Operation Manual”

These analog I/O modules are part of an OPEN TYPE control system.

The ELCM should be kept in an enclosure away from airborne dust,

humidity, electric shock risk and vibration. Your application may require

that the enclosure be locked to prevent non-maintenance staff from

operating the controller (e.g. key or specific tools that are required for

opening the enclosure) in cases where danger and damage to

equipment or personnel may occur. Do NOT touch the terminals while

power is applied.

DO NOT connectAC input power to any of the input terminals; otherwise

serious damage may occur. Check all the wiring before switching on the

power.

Ensure that the ground terminal is properly grounded in order to

prevent electromagnetic interference.

This manual is subject to change without notice.

Product Profile & Dimension

Removable I/O terminal

Panel mounting hole

DIN rail

mounting

slot (35mm)

Power / A->D / Error indicators

I/O module

connection port

I/O terminal No.

Module Name

I/O module clip

I/O module connection port

ELCM-AN04ANNN

4AI

- 2 -

106

61.5

110

Unit:mm

External Wiring

Active-type

CH1

250

-10V~+10V V1+

I1+

VI1-

CH1

CH4

-20mA~+20mA V4+

I4+

VI4-

CH4

24V

DC/DC +15V

-15V

Voltage input

Current input

Shielded cable*1

Terminal of

power module

System

grounding

Grounding (100 or less)

Converter

250

UIN

Passive-type

CH1

250

-10V~+10V

V1+

I1+

VI1-

CH1

CH4

-20mA~+20mA V4+

I4+

VI4-

CH4

24V

DC/DC +15V

-15V

Voltage input

Current input

Shielded cable*1

Terminal of

power module

System

grounding

Grounding (100 or less)

Converter

250

UIN

Note 1: Please isolate analog signals from power wiring.

Note 2: When the analog input module is connected to current signals, make sure you

short-circuit “V+” and “I+” terminals.

Note 3: If ambient electrical noise is significant, please connect FE to the grounding terminal.

Note 4: Please connect the power supply terminal and the analog input module

terminal to a suitable system earth ground.

- 3 -

Note 5: If the ripples at the loaded output terminal are large enough to cause noise interference

on the wiring, connect a 0.1 ~ 0.47μF 25V capacitor as shown.

I/O Terminal Layout

I4+V4+FE

0V24V

ELCM-AN04ANNN (4AI)

VI4-

I2+V2+FEVI1-I1+V1+ FEVI3-I3+V3+FEVI2-

Note: Use 12-28 AWG single-core bare wire or multi-core (stranded) wire for the I/O wiring.

The ELCM terminal screws should be tightened to 4.75 kg-cm (4.12 in-lbs) and please

use 60/75°C copper conductor only.

Electrical Specifications

Analog / Digital module

Power supply voltage

24VDC (20.4VDC ~ 28.8VDC) (-15% ~ +20%)

Max. rated power

consumption

1W, supplied by external power source

Connector

IEC standard removable terminal block (Pin pitch: 5mm)

Operation/storage

temperature

Operation: 0°C~55°C (temperature), 50~95% (humidity),

Pollution degree2

Storage: -25°C~70°C (temperature), 5~95% (humidity)

Vibration/shock

immunity

IEC61131-2, IEC 68-2-6 (TEST Fc)/ IEC61131-2 & IEC

68-2-27 (TEST Ea)

Series connection to

ELC

The modules are numbered from 0 to 7 automatically by their

distance from the controller. A maximum of 8 modules are

allowed to connect to ELCM.

Weight

174g

Functions Specifications

Analog / Digital

module

Voltage input

Current input

Analog input channel

4 channels / each module

Range of analog input

±10V

±5V

±20mA

0 ~ 20mA

4 ~ 20mA

Range of digital

conversion

±32,000

0 ~ 32,000

Max./Min. range of

digital data

±32,384

-384~+32,384

Hardware Resolution

14 bits

13 bits

Input impedance

≧1MΩ

250Ω

Range of absolute

input

±15V

±32mA

Overall accuracy

0.5% when in full scale (25°C, 77°F)

1% when in full scale within the range of 0 ~ 55°C (32 ~

131°F)

Response time

400μs / each channel

Digital data format

2’s complement of 16 bits

Average function

Supported. Available for setting up average times in CR#8 ~

CR#11. Range: K1 ~ K100.

- 4 -

Analog / Digital

module

Voltage input

Current input

Self-diagnosis

Upper and lower bound detection in all channels

Isolation method

Optical coupler isolation between digital circuits and analog

circuits. No isolation among analog channels.

500VDC between digital circuits and Ground

500VDC between analog circuits and Ground

500VDC between analog circuits and digital circuits

500VDC between 24VDC and Ground

Control Register

CR#

Attrib.

Explanation

Module name

Set up by the system:

ELCM-AN04ANNN module code =

H’0080

Firmware version

Display the current firmware version in

hex.

R/W

CH1 input mode setting

Input mode: Default = H’0000.

Take CH1 for example:

Mode 0 (H’0000): Voltage input (±10V)

Mode 1 (H’0001): Voltage input (±5V)

Mode 2 (H’0002): Voltage input (0 ~

+10V)

Mode 3 (H’0003): Voltage input (0 ~

+5V)

Mode 4 (H’0004): Current input

(±20mA)

Mode 5 (H’0005): Current input (0 ~

+20mA)

Mode 6 (H’0006): Current input (+4~

+20mA)

Mode -1 (H’FFFF): Channel 1

unavailable

R/W

CH2 input mode setting

R/W

CH3 input mode setting

R/W

CH4 input mode setting

R/W

CH1 average times

Set average times in CH1 ~ CH4:

Range = K1 ~ K100

Default = K10

R/W

CH2 average times

#10

R/W

CH3 average times

#11

R/W

CH4 average times

#12

CH1 average input value

Average value of input signals at CH1 ~

CH4

#13

CH2 average input value

#14

CH3 average input value

#15

CH4 average input value

#20

CH1 present input value

Present value of input signals at CH1 ~

CH4

#21

CH2 present input value

#22

CH3 present input value

#23

CH4 present input value

#28

R/W

Adjusted Offset value of CH1

Set the adjusted Offset value of CH1 ~

CH4. Default = K0

Definition of Offset:

The corresponding voltage (current)

input value when the digital output

value = 0.

#29

R/W

Adjusted Offset value of CH2

#30

R/W

Adjusted Offset value of CH3

#31

R/W

Adjusted Offset value of CH4

- 5 -

CR#

Attrib.

Explanation

#34

R/W

Adjusted Gain value of CH1

Set the adjusted Gain value in CH1 ~

CH4. Default = K16,000

Definition of Gain:

The corresponding voltage (current)

input value when the digital output

value = 16,000.

#35

R/W

Adjusted Gain value of CH2

#36

R/W

Adjusted Gain value of CH3

#37

R/W

Adjusted Gain value of CH4

#40

R/W

Function: Set value changing

prohibited

Prohibit set value changing in CH1 ~

CH4. Default= H’0000.

#41

R/W

Function: Save all the set

values

Save all the set values, Default

=H’0000

#42

R/W

Function: Return to default

setting

Set all values to default setting, Default

= H’0000

#43

Error status

Refer to table of error status for more

information.

#100

R/W

Function: Enable/Disable limit

detection

Enable/Disable the upper and lower

bound detection function. Default=

H’0000.

#101

R/W

Upper and lower bound status

Display the upper and lower bound

value, Default =H’0000

#102

R/W

Set value of CH1 upper bound

Set value of CH1~CH4 upper bound.

Default = K32000.

#103

R/W

Set value of CH2 upper bound

#104

R/W

Set value of CH3 upper bound

#105

R/W

Set value of CH4 upper bound

#108

R/W

Set value of CH1 lower bound

Set value of CH1~CH4 lower bound.

Default = K-32000.

#109

R/W

Set value of CH2 lower bound

#110

R/W

Set value of CH3 lower bound

#111

R/W

Set value of CH4 lower bound

Symbols:

O: When CR#41 is set to H’5678, the set value of CR will be saved.

X: set value will not be saved.

R: able to read data by using FROM instruction.

W: able to write data by using TO instruction.

※CR#43: Error status value. See the table below:

Description

bit0

K1 (H’1)

Power supply

error

bit6

K64 (H’40)

CH4 Conversion error

bit1

K2 (H’2)

Hardware error

bit9

K512(H’0200)

Mode setting error

bit2

K4 (H’4)

Upper/lower

bound error

bit10

K1024(H’0400)

Sampling range error

bit3

K8 (H’8)

CH1 Conversion

error

bit11

K2048(H’0800)

Upper / lower bound

setting error

bit4

K16 (H’10)

CH2 Conversion

error

bit12

K4096(H’1000)

Set value changing

prohibited

bit5

K32 (H’20)

CH3 Conversion

error

bit13

K8192(H’2000)

Communication

breakdown on next

module



Note: Each error status is determined by the corresponding bit (b0 ~ b13) and there may be

more than 2 errors occurring at the same time. 0 = normal; 1 = error

- 6 -

Explanation on Special Registers D9900~D9999

When ELCM-PH/ELCM-PA controllers use expansion I/O modules,

registers D9900~D9999 will be reserved for storing values from these

modules. You can apply the MOV instruction to access values in

D9900~D9999.

When ELCM-PH/ELCM-PA controllers use ELCM-AN04ANNN analog input

modules, special registers are configured as shown below:

Module

Description

D1320

D1321

D1322

D1323

D1324

D1325

D1326

D1327

Module Code

D9900

D9910

D9920

D9930

D9940

D9950

D9960

D9970

CH1 average

input value

D9901

D9911

D9921

D9931

D9941

D9951

D9961

D9971

CH2 average

input value

D9902

D9912

D9922

D9932

D9942

D9952

D9962

D9972

CH3 average

input value

D9903

D9913

D9923

D9933

D9943

D9953

D9963

D9973

CH4 average

input value

Note 1: D9900 ~ D9999 are average input values of CH1 ~ CH4 and the average times is K1 ~

K100. When the average times is set to K1, the values displayed in D9900~D9999 are

current values. You can use: 1. ELCM_AIO Configuration Function of ELCSoft or 2.

FROM/TO instructions (CR#8 ~ CR#11) to set the average times as K1.

Adjust A/D Conversion Curve

Users can adjust the conversion curves according to the actual needs by

changing the Offset value (CR#28 ~ CR#31) and Gain value (CR#34 ~

CR#37).

Gain: The corresponding voltage/current input value when the digital output

value = 16,000.

Offset: The corresponding voltage/current input value when the digital

output value = 0.

Equation for voltage input Mode0 / Mode2: 0.3125mV = 20V/64,000 =

10V/32,000

 

OffsetGainOffset

Y











 32000

16000 )( )(

Y=Digital output,

X=Voltage input

Equation for voltage input Mode1 / Mode3: 0.15625mV = 10V/64,000 =

5V/32,000

 

OffsetGainOffset

Y











 32000

16000 )( )(

Y=Digital output,

X=Voltage input

Equation for current input Mode4 / Mode5: 0.625μA = 40mA/64,000 =

20mA/32,000

 

OffsetGainOffset

mAX

Y











 32000

16000 )( )(

Y=Digital output,

X=Current input

- 7 -

Equation for current input Mode6: 0.5μA = 16mA/32,000

Adopt the Equation of current input Mode4/Mode5, substitute Gain for

19200 (12mA) and Offset for 6400 (4mA)

 

640019200640032000

16000 











 )( )(mA

mAX

Y=Digital output,

X=Current input

Mode 0:

Mode 1:

Voltage input

+32000

+16000

-16000

10V

-32000

-10V 5V

Gain

Offset

Digital

output

+32384

-32384

Voltage input

+32000

+16000

-16000

-32000

-5V 2.5V

Gain

Offset

Digital

output

+32384

-32384

Mode 0 of CR#2 ~ CR#5

-10V ~ +10V, Gain = 5V (16,000), Offset = 0V (0)

Mode 1 of CR#2 ~ CR#5

-5V ~ +5V, Gain = 2.5V (16,000), Offset = 0V (0)

Range of digital conversion

-32,000 ~ +32,000

Max./Min. range of digital

conversion

-32,384 ~ +32,384

Mode 2:

Mode 3:

Voltage input

+32000

+16000

10V5V

0Gain

Offset

Digital

output

+32384

-384

Voltage input

+32000

+16000

2.5V

0Gain

Offset

Digital

output

+32384

-384

Mode 2 of CR#2 ~ CR#5

0V ~ +10V, Gain = 5V (16,000), Offset = 0V (0)

Mode 3 of CR#2 ~ CR#5

0V ~ +5V, Gain = 2.5V (16,000), Offset = 0V (0)

Range of digital conversion

0 ~ +32,000

Max./Min. range of digital

conversion

-384 ~ +32,384

- 8 -

Mode 4:

Current input

+32000

+16000

-16000

20mA

-32000

-20mA 10mA

Gain

Offset

Digital

output

+32384

-32384

Mode 4 of CR#2 ~ CR#5

-20mA~ +20mA, Gain = 10mA (16,000), Offset = 0mA

(0)

Range of digital conversion

-32,000 ~ +32,000

Max./Min. range of digital

conversion

-32,384 ~ +32,384

Mode 5:

Mode 6:

Current input

+32000

+16000

20mA

10mA

0Gain

Offset

Digital

output

+32384

-384

Current input

+32000

+16000

20mA12mA

0Gain

Offset

Digital

output

+32384

-384 4mA

Mode 5 of CR#2 ~ CR#5

0mA ~ +20mA, Gain = 10mA (16,000), Offset = 0mA

(0)

Mode 6 of CR#2 ~ CR#5

+4mA ~ +20mA, Gain = 12mA (19,200), Offset = 4mA

(6,400)

Range of digital conversion

0 ~ +32,000

Max./Min. range of digital

conversion

-384 ~ +32,384

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