Instruction manual

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Communication interface : EIA RS-485
Communication method : Half-duplex communication
Synchronization method : Start-stop synchronization
Communication protocol : Shinko protocol, Set value digital transmission (Shinko
protocol), Set value digital reception (Shinko protocol),
Modbus ASCII, Modbus RTU
(Default: Shinko protocol)
Communication speed : 2400, 4800, 9600, 19200bps, (Default: 9600bps)
Selectable by keypad
Parity : Even, Odd, No parity (Selectable by keypad)
(Default: Even)
Stop bit : 1, 2 (Selectable by keypad) (Default: 1)
Data format : Data bit is automatically changed upon selecting a
communication protocol.
Protocol Shinko Modbus ASCII Modbus RTU
Start bit 1 1 1
Data bit 7 7 8
Parity Even Selection (Even) Selection (No parity)
Stop bit 1 Selection (1) Selection (1)
Value in the bracket ( ): Basic set value
Set value digital transmission (Option code: SVTC)
If SVTC option is added, external operation function cannot be used.
If Set value digital transmission is selected during Communication protocol selection,
step SV of the PCD-33A can be transmitted digitally to a maximum of 31 units of
Shinko controllers with communication function (C5 option).
If Set value digital reception is selected during Communication protocol selection,
step SV can be received from Shinko PC-935/PCD-33A with Set value digital
transmission (SVTC option).
Insulated power output (Option code: P24)
When P24 option is added, Alarm 2 (A2) cannot be used.
Output voltage: 24 3V DC (When load current is 30mA DC)
Ripple voltage: Within 200mV DC (When load current is 30mA DC)
Max. load current: 30mA DC
Color black (Option code: BK)
Front panel : Dark gray
Case : Black
Terminal cover (Option code: TC)
Electrical shock protection terminal cover
11. Troubleshooting
If any malfunctions occur, refer to the following items after checking the power and wiring.
Warning
Turn the power supply to the instrument off before checking the wiring.
Working on or touching the terminal with the power switched on may result
in severe injury or death due to Electric Shock.