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Operating Instructions:
Modbus Overview:
The Parker DIN modules communicate via the Modbus protocol. All data is transferred
using the Modbus holding registers. The default connection is RS-485 at 115,200 baud,
8 bits, even parity and one stop bit.
Note: If parity setting (register 109) is changed to “none” then two stop bits must be
used.
The default Modbus mode is RTU. The Default Modbus addresses (register 105) for the
various Modules are:
DINCon: 10
DINPres: 20
DINTemp: 30
Four physical layer interfaces are available for DIN Module communications:
RS232 – Modbus/RTU or Modbus/ASCII
RS485 – Modbus/RTU or Modbus/ASCII
Ethernet - Modbus/TCP
USB - Modbus/RTU or Modbus/ASCII
The active Modbus interface is selected by connecting to the modules built-in web
server. Connect using an Ethernet patch cable and a hub on your network, or directly to
the unit with an Ethernet crossover cable. The default IP addresses are 192.168.0.142
for the DINCon, 192.168.0.143 for the DINPres, and 192.168.0.144 for the DINTemp. It
may be necessary to create a new connection, or modify and existing one. Make any
changes required to configuration and click on “Submit” to save them to the module.
Any changes made via this interface require a power cycle of the module to take effect.
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