Before Starting

Make Sure You Have \ All the Components You Need

To use the AC500 PLC in our example you should use at least the following parts:

  • TB521-ETH Terminal Base for the Processor Module with 2 slots for Communication Modules
  • PM581-ETH (Processor Module)
  • TA524 Dummy Communication Module module  to cover the unused Communication Module slots
  • TK501 Programming Cable D-Sub / D-Sub

Optional:

  • TA521 Lithium Battery
  • MC502 Memory SD-Card

You can use the following components to add additional I/O modules:

If you want to: Then use this component:
connect a 24 V DC digital sensor or actuator to the PLC DI524 (32 DI ), DC522 (16DC), DC523 (24DC), DC532 (16DI/16DC) or  DX522 (8DI/8 DO-R) with the corresponding Terminal Unit with screw or spring connection TU515/516 or TU531/532
connect a 115-230 V AC digital sensor or actuator to the PLC DX531 (8DI 115-230 V AC / 4 DO-R) + corresponding Terminal Unit TU531/532 with screw or spring technology
connect a 24 V DC analog sensor or actuator to the PLC AI523 (16AI U/I/PT100), AO523 (16AO), AX521 (4AI/4AO U/I/PT100) or AX522 (8AI/8AO U/I/PT100) + corresponding Terminal Unit TU515/516
label the I/O Channels TA523 (Pluggable Marking Holder) + TA525 Set of Plastic Markers

The following components are recommended for fieldbus communication:

If you want: Then use this component:
  • the system to act as a master on PROFIBUS DP or CANOPEN fieldbuses
 CM592-DP for PROFIBUS DP or CM578-CN for CANOPEN
  • the system to act as a slave on PROFIBUS DP or CANOPEN fieldbuses
 FieldBusPlug standard plugs like PDP22-FBP (PROFIBUS DP slave) or other one’s
  • to exchange data via the network
 CM597-ETH to achieve ETHERNET TCP/IP communication with integrated 2-ports switch

System Planning

Consider the following when planning your AC500 system:

  • The AC500 PLC consists of a Terminal Base TB5xx (with Communication Module slots) and a pluggable or fixed Processor Module. Different Processor Module classes are offered.
  • As some Processor Modules can be used in combination with different Terminal Bases, proper Terminal Base selection requires that sufficient slots are available for all current or future network and fieldbus Communication Modules (e.g. ETHERNET, ARCNET, PROFIBUS, etc.).
  • Several Communication Modules can be connected to the Processor Module through the dedicated Terminal Base.
  • All types of Communication Modules can be used together in the same time (e.g. a mix of Communication Module types like ETHERNET + ETHERCAT + PROFIBUS DP + CANOPEN, etc.
  • An additional process power supply has to be provided for the I/Os of each module. Each I/O expansion module can be powered with its own power supply (for isolation purposes) or the same power supply can also be used.