Yokogawa JUXTA M Series Digital Limit Alarms MVTK - Manual (Page 10)

1-2
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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
8
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.
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Protocol selection (PSL)
Set the communication protocol identical to that of the higher-level device to be connected.