Delta DVP-15MC Series, Operation Manual

Page: 286 / 972

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
ET H_E rr or
E TH_Err or ID
Case1 Case2 Case3
E rr or
Err orID
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.