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8.2 Optional specifications
A2 output (Option code: A2)
Action
: ON/OFF action
Hysteresis : 0.1 to 100.0 ( ), or 1 to 1000
Output
: Relay contact 1a
Control capacity, 3A 250V AC (Resistive load)
Electrical life, 100,000 times
Serial communication (Option code: C5)
When this option is added, the [SM] option cannot be added with it.
The following operations can be carried out from the external computer.
(1) Reading and setting of the SV and each set value
(2) Reading of the PV and action status
(3) Change of the functions
Cable length
: Maximum communication distance 1.2km
Cable resistance: Within 50 (Terminator is not necessary or 120 or
more on one side.)
Communication interface
: EIA RS-485
Communication method
: Half-duplex communication start-stop synchronization
Communication speed
: 2400, 4800, 9600, 19200bps (Selectable by keypad)
Parity
: Even, Odd and No parity (Selectable by keypad)
Stop bit
: 1 and 2 (Selectable by keypad)
Communication protocol
: Shinko protocol, Modbus ASCII, Modbus RTU (Selectable by keypad)
Number of units connectable : Maximum 31 units to 1 host computer
Communication error detection : Double detection by parity and checksum
External reset input (Option code: SM)
If this option is added, the [C5] option cannot be added with it.
By connecting External reset input terminals 13-14, the RESET indicator goes off, OUT (Limit control
output terminals between 6-7) is turned ON, and limit control action initiates.
However, while the EXCEEDED indicator is lit, limit control action does not initiate even though
External reset input terminals 13-14 are shorted.
Contact 13-14 Open : External reset OFF
Contact 13-14 Closed : External reset ON
Circuit current when closed: 6mA
Terminal cover (Option code: TC)
: Electrical shock protection terminal cover
Color Black (Option code: BK)
: Front panel frame and Case: Black
