Instruction Manual

1-2

IM 77J04J11-01E 1st Edition : 2006.08.25-00

1.2 Notes on Setting Parameters

This section describes the setting parameters for using the communication func-

tions and their setting ranges.

CAUTION

The details of M Series communication functions need to be the same as those of the

communication functions of the higher-level device to be connected. Check the communi-

cation parameters of the higher-level device first, then set up those of the M Series.

Table 1-1 Parameters to be Set for Communication Functions

Parameter Name

MODBUS communication ASCII mode (3)

RTU mode (4)

Protocol selection Without checksum (0)

With checksum (1)

PC link communication

Setting Range

Baud rate

Parity

Stop bit

Data length

Address

PSL

Symbol

BPS

PRI

STP

DLN

ADR

1.2 (0), 2.4 (1), 4.8 (2), 9.6 (3) kbps

NON (0), EVN (1), ODD (2)

1, 2

7, 8 (*1)

1 to 99

Ladder (2)Ladder communication

PC link communication

without checksum

(0)

Default

9.6 (3)

EVN (1)

*1: When "Ladder communication" is selected in protocol selection, the data length is fixed to 8.

When "MODBUS communication" is selected, the data length is fixed to 7 for ASCII mode and to 8 for RTU mode.

● Protocol selection (PSL)

Set the communication protocol identical to that of the higher-level device to be connected.