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Spare parts spare parts, the DCS control system of PLC system and the robot system spare parts,

Brand advantage: Allen Bradley, BentlyNevada, ABB, Emerson Ovation, Honeywell DCS, Rockwell ICS Triplex, FOXBORO, Schneider PLC, GE Fanuc, Motorola, HIMA, TRICONEX, Prosoft etc. Various kinds of imported industrial parts

RET670 1MRK004816-AC Operation panel

Modbus Implementation: Force Single Coil PQMII Implementation: Execute Operation This function code allows the master to request all PQMIIs on a particular communications link to Clear All Demand Data. The PQMII will recognize a packet as being a broadcast command if the Slave Address is transmitted as 0. Below is an example of the Broadcast Command to Clear All Demand Data Modbus Implementation: Preset Single Register PQMII Implementation: Store Single Setpoint This command allows the master to store a single setpoint into the memory of a PQMII. The slave response to this function code is to echo the entire master transmission. Message Format and Example for Modbus Function Code 06h: Request slave 17 to store the value 01E4 in setpoint address 1020. After the transmission in this example is complete, setpoint address 1020 will contain the value 01E4.

Modbus Implementation: Read Exception Status PQMII Implementation: Read Device Status This is a function used to quickly read the status of a selected device. A short message length allows for rapid reading of status. The status byte returned will have individual bits set to 1 or 0 depending on the status of the slave device.

Store Multiple Setpoints 

(Function Code 10h) Modbus Implementation: Preset Multiple Registers PQMII Implementation: Store Multiple Setpoints This function code allows multiple setpoints to be stored into the PQMII memory. Modbus ‘registers’ are 16-bit (2-byte) values transmitted high order byte first. Thus all PQMII setpoints are sent as two bytes. The maximum number of setpoints that can be stored in one transmission is dependent on the slave device. Modbus allows up to a maximum of 60 holding registers to be stored. The PQMII allows 60 registers to be stored in one transmission. The PQMII response to this function is to echo the slave address, function code, starting address, the number of setpoints stored, and the CRC. Message Format and Example for function code 10h: Request slave 17 to store the value 01F4 to setpoint address 1028 and the value 2710 to setpoint address 1029.