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Rockwell Automation 1734-XXXX POINT I/O Digital and Analog Modules and POINTBlock I/O Modules User Manual

Page 107

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Rockwell Automation Publication 1734-UM001E-EN-P - July 2013

POINT I/O Module Data 109

The 1734-OE2V module:

consumes 4 bytes of data (scanner Rx) in this format:

Channel 0 Data (2 bytes)

Channel 1 Data (2 bytes)

produces 2 bytes of data (scanner Tx) in this format:

Channel 0 Status (1 byte)

Channel 1 Status (1 byte)

Default Data Map for the 1734-OE2C Analog Output Module

Message Size: 4 Bytes

15

14

13

12

11

10

09

08

07

06

05

04

03

02

01

00

Consumes (Tx)

Output Channel 0 High Byte

Output Channel 0 Low Byte

Output Channel 1 High Byte

Output Channel 1 Low Byte

Message Size: 2 Bytes

15

14

13

12

11

10

09

08

07

06

05

04

03

02

01

00

Produces (Rx)

High Byte - Channel 1 Status

Low Byte - Channel 0 Status

Not used

HCA

LCA

CM

CF

Not used

HCA

LCA

CM

CF

Where: CF = Channel Fault status; 0 = no error, 1 = fault

CM = Calibration Mode; 0 = normal, 1 = calibration mode
LCA = Low Clamp Alarm; 0 = no error, 1 = fault
HCA = High Clamp Alarm; 0 = no error, 1 = fault

Default Data Map for the 1734-OE2V Analog Output Module

Message Size: 4 bytes

15

14

13

12

11

10

09

08

07

06

05

04

03

02

01

00

Consumes (Tx)

Output Channel 0 High Byte

Output Channel 0 Low Byte

Output Channel 1 High Byte

Output Channel 1 Low Byte

Message Size: 2 Bytes

Produces (Rx)

High Byte - Channel 1 Status

Low Byte - Channel 0 Status

Not used

HCA

LCA

CM

CF

Not used

HCA

LCA

CM

CF

Where: CF = Channel Fault status; 0 = no error, 1 = fault

CM = Calibration Mode; 0 = normal, 1 = calibration mode
LCA = Low Clamp Alarm; 0 = no error, 1 = fault
HCA = High Clamp Alarm; 0 = no error, 1 = fault