Instruction manual

2. SPECIFICATIONS

IIMS01J02-E1

 COM.PORT3

Interface: Based on RS-232C, EIA standard

Based on RS-422A, EIA standard

Based on RS-485, EIA standard

Specify when ordering

Connection method: RS-232C: Point-to-point connection

RS-422A: 4-wire system, multi-drop connection

RS-485: 2-wire system, multi-drop connection

Protocol: • Based on ANSI X3.28 subcategory 2.5 B1 (RKC communication)

Error control: Vertical parity (when parity bit is selected)

Horizontal parity

Data types: ASCII 7-bit code

• Modbus protocol

Signal transmission mode: Remote Terminal Unit (RTU) mode

Function codes: 03H Read holding registers

06H Preset single register

08H Diagnostics (loopback test)

10H Preset multiple registers

Error check method: CRC-16

Error codes: 1: Function code error (An unsupported

function code was specified)

2: − When written to read only data

− When any address other than 0000H

to 02EEH is specified (However,

07D0H to 0BB7H are excluded)

3: − When the data written exceeds the

setting range

− When the specified number of data

items in the query message exceeds

the maximum number of data items

available

Protocol can be selected with switch

Synchronous method: Start/stop synchronous type

Communication speed: 9600 bps, 19200 bps, 38400 bps

Communication speed can be selected with switch

Data bit configuration: Start bit: 1

Data bit: 7 or 8

Parity bit: Without, Odd or Even

Without for 8 data bits

Stop bit: 1 or 2

Data bit configuration can be selected with switch

Connected equipment: Host computer, touch panel or operation panel