Programmer (HHP) User guide

Chapter 15
Using Communication Protocols
15–11
Any MSG instruction that is in progress during a network protocol switch is
not processed and is discarded. For more information on network protocol
switching, see page 3–12.
When an error condition occurs, the error code is stored in the lower byte of
the first control word assigned to the MSG instruction.
Error
Code
Description of Error Condition
02H Target node is busy.
03H Target node cannot respond because message is too large.
04H
Target node cannot respond because it does not understand the command parameters OR
the control block may have been inadvertently modified.
05H Local processor is of fline (possible duplicate node situation).
06H Target node cannot respond because requested function is not available.
07H Target node does not respond.
08H Target node cannot respond.
09H Local modem connection has been lost.
0AH Buffer unavailable to receive SRD reply.
0BH Target node does not accept this type of MSG instruction.
0CH Received a master link reset.
10H
Target node cannot respond because of incorrect command parameters or unsupported
command.
15H Local channel configuration parameter error exists.
18H Broadcast (Node Address 255) is not supported.
1AH
➀
Target node cannot respond because another node is file owner (has sole file access).
1BH
➀
Target node cannot respond because another node is program owner (has sole access to all
files).
37H Message timed out in local processor.
39H Message was discarded due to a communication protocol switch.
3AH Reply from target is invalid.
50H Target node is out of memory.
60H Target node cannot respond because file is protected.
E7H Target node cannot respond because length requested is too large.
EBH Target node cannot respond because target node denies access.
ECH Target node cannot respond because requested function is currently unavailable.
FAH Target node cannot respond because another node is file owner (has sole file access).
FBH
Target node cannot respond because another node is program owner (has sole access to all
files).
➀
Error codes 1A and 1B valid for Series C discrete only.
Note: For 1770–6.5.16 DF1 Protocol and Command Set users:
The MSG error code reflects the STS field of the reply to your MSG
instruction. Codes E0 – EF represent EXT STS codes 0 – F. Codes F0 – FC
represent EXT STS codes 10 – 1C.
MSG Instruction Error Codes
Programming