Ethernet Communication Module DVPEN01-SL 
DVP-PLC Operation Manual 
 
8 
CR# 
HW  LW 
Attribute  Content  Explanation 
  #115  R/W  Modbus TCP trigger  Setting up whether to send out data in Modbus TCP mode 
 #116 R/W Modbus TCP status Displaying current status of Modbus TCP mode 
#118 #117  R/W 
Modbus TCP 
destination IP 
Setting up destination IP address for Modbus TCP transaction
  #119  R/W  Modbus TCP data length Setting up the data length for Modbus TCP transaction 
#219 ~ #120  R/W  Modbus TCP data buffer Data buffer of Modbus TCP for storing sending/receiving data
#248 ~ #220  -  Reserved 
 #251  R  Error code 
Displaying the errors. See table of error codes in the following 
section for more information. 
#255 ~ #252  -  Reserved 
Symbols “R” refers to “able to read data by FROM instrcution”; “W” refers to “able to write data by TO 
instrcution”. 
4.2  Explanations on CR 
CR#0: Model Name 
Explanations: 
1. Model code of DVPEN01-SL = H’4050. 
2. You can read the model code in the program to see if the I/O module exists. 
 
CR#1: Firmware Version 
Explanations:  
The firmware version of DVPEN01-SL is displayed in hex, e.g. H’0100 indicates version V1.00. 
 
CR#2: Communication Mode 
Explanations:  
Bit No.  Mode  “0”  “1” 
b0 Modbus TCP  Disable  Enable 
b1 Data exchange  Disable  Enable 
 
  E-mail Functions 
CR#3 ~ 6: E-Mail Event 1 ~ 4 Trigger 
Explanations: 
When the CR is set as “1”, E-mail sending will be enabled. After the sending is completed, the 
CR will automatically be reset as “0”. Note: Please trigger by differential instructions.