RKC INSTRUMENT Z-TIO-G, Instruction Manual

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11. SPECIFICATIONS
IMS01T28-E4
11-9

Communication
Interface: Based on RS-485 EIA standard
Connection method: 2-wire system, half-duplex multi-drop connection
Synchronous method: Start/Stop synchronous type
Communication speed: 4800 bps, 9600 bps, 19200 bps, 38400 bps
Data bit configuration: Start bit: 1
Data bit: RKC communication: 7 or 8
Modbus: 8
Parity bit: RKC communication: Without, Odd or Even
Modbus: Without
Stop bit: 1
Protocol: RKC communication (ANSI X3.28-1976 subcategories 2.5 and B1)
Modbus-RTU
(Selectable)
Error control: RKC communication: Vertical parity, Horizontal parity
Modbus: CRC-16
Termination resistor: Externally terminal connected (Example: 120

, 1/2 W)
Interval time: 0 to 250 ms
Data mapping function: Up to 16 items (Modbus only)
Maximum connections: Up to 16 Z-TIO modules
The maximum number of SRZ modules (including other function modules) on the
same communication line is 31.
Signal logic: RS-485
Signal voltage Logic
V (A)

V (B)

2 V 0 (SPACE)
V (A)

V (B)
 
2 V 1 (MARK)
Voltage between V (A) and V (B) is the voltage of (A) terminal
for the (B) terminal.
 Loader communication function
Connection method: Connection with a loader communication cable for our USB converter
COM-K (sold separately).
Synchronous method: Start/Stop synchronous type
Communication speed: 38400 bps
Data bit configuration: Start bit: 1
Data bit: 8
Parity bit: Without
Stop bit: 1
Data bit configuration is fixed to the above value.
Module address is fixed at 0.
Protocol: Based on ANSI X3.28-1976 subcategories 2.5 and B1
Maximum connections: 1 point