Instruction Manual

Logic Functions - Book 1
INTERFACE BLOCK
3-17
43
EPROM Checksum Fault Unacknowledged (EPCHKUAK)............................................ – WR
The unacknowledged EPROM checksum fault diagnostic indicates if the condition is or is not
acknowledged. The status can be read or acknowledged as follows:
YES 1 Diagnostic error is unacknowledged.
NO 0 Diagnostic error is acknowledged.
44
EPROM Checksum Fault Active (EPCHKACT)................................................................– – R
When the instrument was last powered, a checksum error was found in the identity module
EPROM and the instrument therefore shut down. See INSTRUMENT SHUTDOWN FAULT.
YES 1 “EPROM CHECKSUM FAULT” is active.
NO 0 Diagnostic error is not active.
45
Bad RAM Fault Unacknowledged (BDRAMUAK) ........................................................... – WR
The unacknowledged bad RAM fault diagnostic indicates if the condition is or is not
acknowledged. The status can be read or acknowledged as follows:
YES 1 Diagnostic error is unacknowledged.
NO 0 Diagnostic error is acknowledged.
46
Bad RAM Fault Active (BDRAMACT)................................................................................– – R
When the instrument was last powered, one of the RAM chips failed the read/write test, and
the instrument therefore shut down. The error address is preserved at shutdown. See
INSTRUMENT SHUTDOWN FAULT.
YES 1 “BAD RAM FAULT” is active.
NO 0 Diagnostic error is not active.
47
I/O board 1 communications error (IO1CSUP) ...............................................................CWR
The I/O board 1 communications error diagnostic checks if an error (no response or bad
message checksum) occurred in trying to communicate with i/o board 1. The diagnostic can
be suppressed or enabled as follows:
SUPPRESS 1 Diagnostic error is suppressed.
ENABLE 0 Diagnostic error is enabled.
48
I/O board 1 communications error Unacknowledged (IO1CUAK)................................ – WR
The unacknowledged I/O board 1 communications error diagnostic indicates if the condition is
or is not acknowledged. The status can be read or acknowledged as follows:
YES 1 Diagnostic error is unacknowledged.
NO 0 Diagnostic error is acknowledged.
49
I/O board 1 communications error Active (IO1CACT)....................................................– – R
An error (no response or bad message checksum) occurred in trying to communicate with i/o
board 1. There are wrap around counters for these errors at IF1,SLNORSPS and
IF1,SLCHKSMS.
YES 1 “I/O BOARD 1 COMMUNICATIONS ERROR” is active.
NO 0 Diagnostic error is not active.