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2-12 4. Modular Jack (MJ1/MJ2)
Unusable PLC models
The following PLC models cannot be connected to the MJ2.
When connecting any of the above PLCs, be sure to mount the option unit UG230A-DCL and connect
the PLC to the D-sub 25-pin connector of the unit.
Editor (UG00S-CW) Setting
When “None” is chosen for [Option Unit] on the editor, modular jack 2 is automatically used as a PLC
port.
* When “None” is chosen for [Option Unit] and “Not connect PLC” is chosen for [PLC Type], MJ2
becomes usable as when a type is chosen for [Option Unit].
Combination of MJ1 and MJ2 functions
When “Not connect PLC” is chosen for [PLC Type], both MJ1 and MJ2 become usable as when a type
is chosen for [Option Unit]. Page 2-13 shows usable combination of functions.
With the Option Unit UG230A-DCL
MJ2 is used to connect a temperature controller or a barcode reader. Since MJ2 is also available as
an RS-422 (4-wire) port, it differs from MJ1 in some respects.
Slide switch
• Use the switch to set the signal level for the MJ2.
• Functions used with RS-232C
Barcode reader, ladder tool (ladder transfer), printer (serial port)
• Functions used with RS-422
Multi-link 2
• Functions used with either RS-232C or RS-422 depending on the devices to be connected or
connecting methods
Temperature controller/PLC2Way, UG-Link, Modbus slave communication
Wiring
For more information, refer to page 2-16.
Manufacturer PLC
Mitsubishi
A Series CPU
FX Series CPU
(however, can be used with FX0N tool port)
Hitachi HIDIC H-series RS-232C
Siemens
S7-300MPI (HMI ADP)
S7-300MPI (PC ADP)
S7-300MPI (Helmholz SSW7 ADP)
Side View
Slide switch
Lower position: RS-422 (4-wire)
Upper position: RS-232C