Delta DVP-15MC Series - Page 286

Chapter 8 Logic Instructions
8-199
8_
Parameter
Name
Timing for changing to TRUE Timing for changing to FALSE

When the MODBUS TCP data
exchange is restored to normal.
Error
 When an error occurs in the instruction
execution.

When Enable changes from TRUE to
FALSE.
 When the correct parameter value is
filled.
 Output Update Timing Chart
Enable
Valid
ETH_Error
ETH_ErrorID
Case1
Case2 Case3
Error
ErrorID
Case 1 When Enable changes to TRUE, Valid changes to TRUE. When Enable changes to FALSE,
Valid changes to FALSE.
Case 2 When an error occurs while Enable is TRUE, Error changes to TRUE and ErrorID shows
corresponding error code. Error changes to FALSE and the value in ErrorID changes to 0 when
Enable changes to FALSE.
Case 3 When Enable changes to TRUE, Valid changes to TRUE. ETH_Error changes to TRUE and
ETH_ErrorID shows corresponding error code when the MODBUS TCP data sending fails or
timeout occurs during the instruction execution. When Enable changes to FALSE, ETH_Error
changes to FALSE and ETH_ErrorID shows corresponding error code.
 Function
ETH_Link_Status is used for watching if an error occurs in the corresponding MODBUS TCP link or the
slave replies with error codes. The firmware of V1.01 and above supports the function.
Error code
Description
How to deal with
101
The TCP link is disabled.
1. Check if the Ethernet connection is
normal.
2. Re-execute ETH_Link_Manage
instruction to enable the MODBUS
TCP data exchange.
102
TCP link timeout
1. Check if the Ethernet connection is
normal.
2. Check if the settings for the
parameters of ETH_Link_Config
instruction are correct.