ProSoft Technology MVI69-ADM - Manual (Page 320)

Side-Connect API Library Functions MVI-ADM ♦ 'C' Programmable
Developer's Guide 'C' Programmable Application Development Module
Page 320 of 342 ProSoft Technology, Inc.
February 20, 2013
11.8 Side-connect API PLC Status and Control Functions
MVIsc_GetPLCStatus
Syntax
int MVIsc_GetPLCStatus(HANDLE handle, WORD *status, WORD *majfault);
Parameters
handle Handle returned by previous call to MVIsc_Open
status Pointer to variable to receive PLC-5 status word
majfault Pointer to variable to receive PLC-5 major fault word
Description
This function is used by an application to retrieve the PLC-5 status and major
fault words.
handle must be a valid handle returned from MVIsc_Open. Table 3 and Table 4
below define the bits of the status and major fault words, respectively. For
programming convenience and clarity, a definition is provided for each bit in the
API include file MVISCAPI.H.
PLC-5 Status Word
Bit Definition Description
0 MVISC_PLCSTS_RAM_BAD RAM bad
1 MVISC_PLCSTS_RUN_MODE Run mode
2 MVISC_PLCSTS_TEST_MODE Test mode
3 MVISC_PLCSTS_PROG_MODE Program mode
4 MVISC_PLCSTS_BURN_EEPROM Burning EEPROM
5 MVISC_PLCSTS_DWNLD_MODE Download mode
6 MVISC_PLCSTS_EDITS_ENAB Edits enabled
7 MVISC_PLCSTS_REM_MODE Remote modes
8 MVISC_PLCSTS_FRC_ENAB Forces enabled
9 MVISC_PLCSTS_FRC_PRES Forces present
10 MVISC_PLCSTS_EEPROM_SUCC Successful EEPROM burn
11 MVISC_PLCSTS_ONLINE_EDIT Online editing
12 MVISC_PLCSTS_DEBUG_MODE Debug mode
13 MVISC_PLCSTS_PROG_CKSM User program checksum done
14 MVISC_PLCSTS_LAST_SCAN Last scan of ladder/SFC step
15 MVISC_PLCSTS_FIRST_SCAN First scan of ladder/SFC step
PLC-5 Major Fault Word
Bit Definition Description
0 MVISC_PLCFLT_PROG_MEM_BAD Bad user program memory
1 MVISC_PLCFLT_BAD_OPRN_ADDR Illegal operand address