LG GLOFA-GM Series User Manual page 354

Appendix
A.2.3 Error code for dedicated master communication
As for the station operated in dedicated master communication mode and required to compose master program
using GM_RD/GM_WR function block, error information is indicated by output error code on status output of the
function block if error resulted by execution of function block occurs. The following table is for error codes for the
function block of dedicated communication. Error code is displayed in a decimal unit
STATUS value
10
17
21
35
37
Meaning
No response from correspondent station.
Position of Cnet I/F module is incorrectly
specified.
No response from Cnet I/F module
NAK from correspondent station has
been received.
Input parameter setting is incorrect
1) Check setting of correspondent station No.
2) Check dedicated
correspondent station.
3) Check communication basic parameter
Check if SLOT_NO value is correct.
1) Check operation mode of local Cnet module
2) Check channel No.
Check variable name (%MB,%QB,%IB– BYTE only
available)
Check data length
A-11
Action to take
mode for operation of