ODOT Modbus Serial Port Module Model CT-5321 |
CT-5321: Modbus Serial Port Module
Product Feature:
CT-5321 Modbus Serial Port Module
۱ Module Description
The Modbus serial port module supports 1 channel RS485/RS232 /RS422(optional), supports Modbus RTU/ASCII protocol, and supports master, slave and free transparent transmission mode.
The serial Module CT-5321 could be applied with the adapter modules, so it could convert Modbus into other protocols such as Modbus TCP, Profinet, EtherCAT, EtherNet/IP, etc. When the module is used, serial port parameters and Modbus instructions should be configured in IO Config software.
Devices with RS485/RS232/RS422 interface, which support modbus-RTU/ASCII, could be applied with CT-5321 to realize interconnection with upper PLC or upper computers. CT-5321 could be applied with devices such as: PLC, DCS, remote IO, VFD, motor start protection device, intelligent high and low voltage electrical apparatus, power measurement device, intelligent field measurement equipment and instruments, etc.
Product Details

Technical Parameters
General parameters
Power | Max.500mA@5.0Vdc |
Isolation | I/O to internal bus: opto-couple isolation (3KVrms) |
Field Power | Nominal:24Vdc, Range:20-28Vdc |
Wiring | I/O Wiring: Max.1.5mm²(AWG 16) |
Mounting Type | ۳۵mmDIN-Rail |
Size | ۱۱۵*۱۴*۷۵mm |
Weight | ۶۵g |
Environment Specification
Operational Temperature |
-۴۰~۸۵℃ |
Operational Humidity |
۵%~۹۵% RH(No Condensation) |
Protection Class | IP20 |
Serial Port Parameters
Note: M represents the valid parameters of master mode, S represents the valid parameters of slave mode, and F represents the valid parameters of free transparent transmission mode
M/S/F:Channel Number |
۱Channel |
M/S/F:Interface | RS485/RS232/RS422 |
M/S:Protocol | Modbus RTU/ASCII |
M/S/F:Working Mode |
Modbus Master, Slave, Transparent Transmission |
M/S/F:Baud Rate | ۳۰۰bps-500Kbps |
M/S/F:Data Bit | Bit 7, Bit 8 |
M/S/F:Parity Checking |
None, Odd, Even |
M/S/F:Stop Bit | Bit1, Bit2 |
M/S/F: Character Interval |
۱.۵t-200t |
F: Byte Order Conversion |
Prohibit, Enable |
M/F:Response Timeout |
Customized, default: ۱۰۰۰ |
M/F: Polling Timeout |
Customized, default: ۱۰۰ |
M: Read Data Processing Mode |
Hold the last input value, clear the input value |
M: Data Output Mode |
Polling, event triggering (data changes) |
M: Module Control Enable |
Prohibit, Enable |
M: Module Control Mode |
Level trigger (continuously valid), rising edge trigger (single valid) |
M: Power on Event Output |
Prohibit, Enable |
S:Slave ID | Customized, default: ۱ |
S:Response Time |
Customized, default: ۵۰ |