Instruction Manual

POINT I/O 2 Current Output and 2 Voltage Output Analog Modules 11
Publication
1734-IN002C-EN-E - April 2005
Communicate with Your Module
POINT I/O modules send (consume) and receive (produce) I/O
messages. You map these messages into the processor’s memory.
These modules produce 2 bytes of input data (scanner Rx) (fault
status). These modules consume 4 bytes of output data (scanner Tx).
Message size: 2 Bytes
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
Produces
(scanner Rx)
High Byte - Channel 1 Status Low Byte - Channel 0 Status
Not used H
C
A
L
C
A
C
M
C
F
Not used H
C
A
L
C
A
C
M
C
F
Where:
CF = Channel Fault status; 0 = no error, 1 = fault
CM = Calibration Mode; 0 = normal, 1 = calibration mode
HCA = High Clamp Alarm; 0 = no error, 1 = fault
LCA = Low Clamp Alarm; 0 = no error, 1 = fault
Message size: 4 bytes
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
Consumes
(scanner Tx)
Output Channel 0 High Byte Output Channel 0 Low Byte
Output Channel 1 High Byte Output Channel 1 Low Byte