<10. Other Functions>
10-17
IM 11M12G01-02EN 1sh Edition : Mar. 25, 2021-00
10.7 Communication Function
n MODBUS Communication setup
ZR802G has a MODBUS function. RS485 communication and Ethernet (MODBUS TCP/IP) are
11M12G01-62EN.
l RS485 Setup (RS)
MODBUS communication using RS485 is available.
Preset “MODBUS address”, “Baud Rate” and “Parity” from HMI according to the connected
MODBUS master.
Converter addressing 1 to 247(default 1)
Transmission speed 9600 [bps], 38400 [bps]115200 [bps] (default 9600 [bps])
Parity Even, odd, none (default even)
The stop bit is 1 bit when the parity is “even”/“odd”, and 2 bit when the parity is “none”. It is
recommended to setup the parity to “even” or “odd”.
(1) “Converter menu” > “Maintenance” > “Communication settings.”
(2) Select “MODBUS setting” to setup
Figure 10.23 MODBUS Communication setup
l Ethernet setup (E)
Modbus TCP/IP communication is possible by connecting master devices with an Ethernet cable.
Communication standards Ethernet
Session times (Up to.) 2
Protocol Modbus/TCP
Port number 502
The communication rate corresponds to Ethernet 10/100 and Protocol corresponds to Ipv4.
If you are using static IP addresses, setup IP addresses, subnet masks, and default gateways
appropriately for your Ethernet environments. Ethernet setup parameter has the following default:
Parameter name Default
DHCP enable
IP Address 192.168.1.10
Subnet Mask 255.255.255.0
Default gateway 192.168.1.1
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