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8.2 Optional specifications
A2 output (EV2 option)
Action: ON/OFF action
Hysteresis: 0.1 to 100.0 ( ), or 1 to 1000 (DC input) (Default: 1.0 )
Output: Relay contact 1a
Control capacity: 3 A 250 V AC (Resistive load)
1A 250V AC (inductive load cos =0.4)
Electrical life: 100,000 cycles
Minimum applicable load: 10 mA 5 V DC
Serial communication (C5 option)
The following operations can be carried out from an external computer.
(1) Reading and setting of the SV and each value
(2) Reading of the PV and action status
(3) Change of the functions
Cable length: Maximum communication distance: 1.2 km
Cable resistance: Within 50 (Terminators are not necessary, but if used, use 120 or
more on both sides.)
Communication interface: EIA RS-485
Communication method: Half-duplex communication start-stop synchronization
Communication speed: 2400, 4800, 9600, 19200 bps (Selectable by keypad) (Default: 9600 bps)
Parity: Even, Odd and No parity (Selectable by keypad) (Default: Even parity)
Stop bit: 1, 2 (Selectable by keypad) (Default: 1)
Communication protocol: Shinko protocol, Modbus ASCII, Modbus RTU (Selectable by keypad)
Data format:
Communication protocol Shinko protocol Modbus ASCII Modbus RTU
Start bit 1 1 1
Data bit 7 7 8
Parity Even Selectable (Even) Selectable (No parity)
Stop bit 1 Selectable (1) Selectable (1)
Data bit is automatically selected upon selecting the communication protocol. ( ): Basic set value
Number of units connectable: Maximum 31 units to 1 host computer
Communication error detection: Double detection by parity and checksum
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