Address Scheme for Inputs and OutputsΒΆ

  • The Communication Module I/Os are addressed as follows (two-stage process):

    %I(Q)B:strong:Communication ModuleNumber.ByteCommunication Module

  • No Communication Module numbers are assigned to I/Os that are connected to the CPU. These I/Os are configured with the PLC configuration in the Automation Builder.

  • I/Os connected to the basic unit are assigned to the following address areas:

I/O-Bus: %IB0 .. %IB999 and %QB0 .. %QB999
COM1: %IB1000 .. %IB1999 and %QB1000 .. %QB1999
COM2 : %IB2000 .. %IB2999 and %QB2000 .. %QB2999
FBP slave: %IB3000 .. %IB3999 and %QB3000 .. %QB3999
Onboard I/O %IB4000 .. %IB4095 and %QB4000 .. %QB4095
  • Addressing of the digital channels is done byte-oriented.
  • Motorola byteorder is used to access the inputs and outputs.