Protection switch setup data starts at register 05001, each protection switch covers 20 registers for its setup data. This means that protection switch 2 starts at register 05021, protection switch 3 at 05041 and so on. protection switch 32 (there physically only 16 switches available, but the Modbus address space is reserved for a future expansion to 32 switches) starts with address 05621 up to and including address 05633.
The register definitions for protection switch 1 are:
Register Purpose Remarks
05001 protection switch 1 0 = unused / off
operation mode 1 = 1:1 protection
2 = 2:1 protection
05002 protection switch 1 1 = protection enable
enable
05003 chain A fault input 1 See 'Chain Fault Linking'
05004 chain A fault input 2 below
05005 chain A fault input 3
05006 chain A fault input 4
05007 chain A fault input 5
05008 chain B fault input 1
05009 chain B fault input 2
05010 chain B fault input 3
05011 chain B fault input 4
05012 chain B fault input 5
Configuring switches which are not licensed has no effect, the switch automatically falls back to 'unused'.
Chain Fault Linking
Each protection switch has 5 fault link registers for each switch direction protection switching takes place if the fault condition of at least one of them becomes true.
A fault link register containing '-1' is inactive, number 0..63 refer to the inputs 1..64 and 100..105 to the LNA supply monitors 1..6