Download Single-Slot PC Interface Module (PCIM) User`s Manual

5
GETIMSTATE CALL Statement
Syntax
CALL GETIMSTATE (STATUS, IMNUM, IMSTATE(0))
Action
Get Configuration and Status Information
Description
The Get IM State call allows you to access configuration and status information about a
specific PCIM by reading its Setup Table and Status Table into the “IMSTATE” parameter
in Host memory.
The format of IMSTATE is:
IMSTATE(0) DipSwitch
IMSTATE(1) IMRef
IMSTATE(2) OutputLength
IMSTATE(3) InputLength
IMSTATE(4) Revision
IMSTATE(5) PCIM OK
IMSTATE(6) Fault
IMSTATE(7) Active
IMSTATE(8) SBerr
IMSTATE(9) ScanTime
– See page 4-9.
– Reference Address
– Output Control Data Length
– Input Control Data Length
– PCIM Firmware Revision Number
– PCIM OK – every 200 ms, set to 1.
If PCIM OK=0, board has failed.
– Overall fault byte – any PCIM fault
– Hand Held Monitor Present
– Serial Bus error count
– Bus Scan Time in ms
Since the PCIM periodically sets its PCIM OK flag, this call allows the implementation of
a PCIM OK heartbeat procedure.
Parameters are summarized as follows:
Parameter
Function
IMNUM
1–64
Relative number of PCIM
IMSTATE
varies
PCIM Configuration and Status – see above
STATUS
5-18
Values
0/1
Success/Fail
Single-Slot PCIM User’s Manual – January 1994
GFK-0881