Schneider Optics Web Embedded Server - Manual (Page 39)

The MSTR Instruction
840 USE 115 00 Version 1.0 29
* The ss subfield in error code 30ss is shown in the following table.
An error on the TCP/IP Ethernet network itself may produce one of the following
errors in the MSTR control block:
Hex Error Code Meaning
1001 User has aborted the MSTR element.
2001 An unsupported operation type has been specified in the control block.
2002 One or more control block parameters has been changed while the
MSTR element is active (applies only to operations that take multiple
scans to complete). Control block parameters may be changed only
when the MSTR element is not active.
2003 Invalid value in the length field of the control block.
2004 Invalid value in the offset field of the control block.
2005 Invalid values in the length and offset fields of the control block.
2006 Invalid slave device data area.
3000 Generic Modbus fail code.
30ss* Modbus slave exception response.
4001 Inconsistent Modbus slave response.
F001 Option Module not responding
ss Hex value Meaning
01 Slave device does not support the requested operation.
02 Nonexistent slave device registers requested.
03 Invalid data value requested.
04
05 Slave has accepted long-duration program command.
06 Function can’t be performed now; a long-duration command is
in effect.
07 Slave rejected long-duration program command.
Hex Error Code Meaning
5004 Interrupted system call.
5005 I/O error.
5006 No such address.
5009 The socket descriptor is invalid.
500C Not enough memory.
500D Permission denied.
5011 Entry exists.