Rockwell Automation 1746-HSCE2 Multi-Channel High Speed Counter Module - Manual (Page 37)

Publication 1746-UM002B-EN-P - August 2004
Module Operation 2-17
Input Word Bit Values
ACK: Acknowledge Bit
This bit makes a 0 to 1 transition to signal the receipt of programming
data.
MFLT: Module Fault Bit
This bit is set only if the module does not power up correctly. After a
proper power up, the MFLT bit remains reset.
PERR: Programming Error Bit
The state of this bit is valid only when the acknowledge bit is set. This
bit is reset when the last programming block is accepted without
error. It is set when any one of the reserved bits are set or another
programming error has occurred. For a list of other programming
error conditions, see Module Programming Errors on page 5-3.
DEBUG: Debug Mode Bit
This bit is set when the debug mode is active.
For details, see Debug Mode Operation on page 5-7.
FB1: Fuse Status Bit
The FB1 fuse status bit is set (1) when the fuse is open. In addition,
the module fault LED blinks to indicate an open fuse.
When FB1 is set (1), the real outputs do not function. Virtual outputs
are not affected. The input word reflects this condition.
The module tries resetting the outputs at intervals of 500 ms. During
each retry, the fuse status bit is reset (0). After the overload condition
is corrected, the fuse bit resets (0) automatically.
IMPORTANT
When the debug mode is active, the input data file
shows the programming setup, not rate and count
values.