Delta Electronics Communication Module RTU-485 - Manual (Page 3)

Modbus Remote I/O Communication Module RTU-485
DVP-PLC Application Manual 1
Warning
3 Please read this instruction carefully before use and follow this instruction to operate the device in order to prevent
damages on the device or injuries to staff.
3
Switch off the power before wiring.
3
RTU-485 is an OPEN TYPE device and therefore should be installed in an enclosure free of airborne dust, humidity,
electric shock and vibration. The enclosure should prevent non-maintenance staff from operating the device (e.g.
key or specific tools are required for operating the enclosure) in case danger and damage on the device may occur.
3 RTU-485 is to be used for controlling the operating machine and equipment. In order not to damage it, only
qualified professional staff familiar with the structure and operation of RTU-485 can install, operate, wire and
maintain it.
3 DO NOT connect input AC power supply to any of the I/O terminals; otherwise serious damage may occur. Check
all the wirings again before switching on the power and DO NOT touch any terminal when the power is switched
on. Make sure the ground terminal is correctly grounded in order to prevent electromagnetic interference.
Table of Contents
1 INTRODUCTION...................................................................................................................................3
1.1 Features ......................................................................................................................................3
1.2 Specifications ..............................................................................................................................3
2 PRODUCT PROFILE & OUTLINE .......................................................................................................4
2.1 Dimension ...................................................................................................................................4
2.2 Product Profiles ...........................................................................................................................4
2.3 RUN/STOP Switch ......................................................................................................................4
2.4 Address Switch ...........................................................................................................................5
2.5 Communication Mode Switch......................................................................................................5
3 BASIC OPERATION.............................................................................................................................6
3.1 Connecting RTU-485 to DVP Slim DI/DO Extension Unit ...........................................................6
3.2 Installing RTU-485 and DVP Slim DI/DO on DIN Rail .................................................................6
4 AREAS FOR SPECIAL FUNCTIONS ..................................................................................................6
4.1 Areas in Slim DI/DO Extension Unit ............................................................................................6
4.2 Areas in Special Module..............................................................................................................7
4.3 Special Functions ........................................................................................................................7
4.4 Error Codes .................................................................................................................................8
5 FUNCTION CODES RTU-485 SUPPORTS .........................................................................................8
6 APPLICATION OF RTU-485 ................................................................................................................9
6.1 Connection between RTU-485 and Master Device .....................................................................9
6.2 Application Example....................................................................................................................9