Correspondence between: Modbus Saia PG5® & Modbus Engiby
When adapting a Fupla program which has been realized with the FBoxes for Modbus from Engiby to the Modbus FBoxes from SBC, the following points could be from interest.
In the FBoxes from Engiby the 32 bit values can be configured to be transmitted with Little- or Big Endian. In the FBoxes from SBC, the same feature is called with or without "words swap". Please refer to the table below for the correspondance between these two configurations.
|32 bits swap words NO||LITTLE Endian|
|32 bits swap words YES||BIG Endian|
Additionally in the "Master Link RS" FBox of the Engiby library there is on parameter more: The "Address offset".
The address offset option "1 (Modicon)" in the Engiby library corresponds to the parameter "Offset 0->1" from the SBC library (in the FBox "Def Unit Server").
PG5 2.0 / Modbus
Last update: 26.05.2015 12:55
First release: 04.05.2009 08:03