Available Internal Data
3A1704N
27
7
0
Bit
Red Tank Fill: Initiates a fill valve open. This bit can be used to initiate a manual fill cycle or
an auto fill cycle if the auto fill mode is selected. The tank fill valve will close upon reaching
the high level switch. See Byte 78 for tank level status. If the Tank fill bit is maintained the
GCA will close the valve when the tank is full. Will time out and alarm if the High level is not
reached within a preset time.
0
Set red tank fill to inactive
1
Begin filling red tank
1
Not Used
0
N/A
1
N/A
2
Not Used
0
N/A
1
N/A
3
Not Used
0
N/A
1
N/A
4
Not Used
0
N/A
1
N/A
5
Not Used
0
N/A
1
N/A
6
Not Used
0
N/A
1
N/A
7
Not Used
0
N/A
1
N/A
8, 9,
10, 11
ASCII
Errors requiring acknowledgment are presented on first in first out basis. The latest error is
currently in the error register in the CGM. The PLC must send back the exact ASCII value
for the error to be acknowledged in the CGM. If an incorrect ASCII error code is sent back to
the CGM then the error will not clear and the CGM register will be overwritten with the
incorrect error. If multiple error codes exist, then the PLC must acknowledge them in the
order the errors are sent to the PLC from the CGM.
Send the PLC back the same ASCII value in input bytes 8,9,10,11:
Example Error CUCN = Gateway Heart Beat Error:
Byte 9 = C
Byte 10 = U
Byte 11 = C
Byte 12 = N
Byte
Bit
Data
Type
State or
Range
PLC Outputs to CGM Inputs for PLC Control Description
