WAGO 750 Series Manual page 190

186 • MODBUS Functions
Internal Variables
Register address 0x2002 (MODBUS Address 408195)
Value
Access
Description
Register address 0x2003 (MODBUS Address 408196)
Value
Access
Description
Register address 0x2004 (MODBUS Address 408197)
Value
Access
Description
Register address 0x2005 (MODBUS Address 408198)
Value
Access
Description
Register address 0x2006 (MODBUS Address 408199)
Value
Access
Description
Register address 0x2007 (MODBUS Address 408200)
Value
Access
Description
Register address 0x2008 (MODBUS Address 408201)
Value
Access
Description
Register address 0x3000 to 0x5FFF (MODBUS Address 4012289 to 424575)
Value
Access
Description
1,2,3,4, GP_1234
Read
This constant value is used to test the Intel/Motorola format specifier. If the
master reads a value of 0x1234, then with Intel format is selected – this is the
correct format. If 0x3412 apears, Motorola format is selected.
Mask 1, GP_AAAA
Read
This constant is used to verify that all bits are accessible to the fieldbus
master. This will be used together with register 0x2004.
Mask 1, GP_5555
Read
This constant is used to verify that all bits are accessible to the fieldbus
master. This will be used together with register 0x2003.
Maximum positiv number, GP_MAX_POS
Read
Constant in order to control arithmetic.
Maximum negativ number, GP_MAX_NEG
Read
Constant in order to control arithmetic.
Maximum half positiv number, GP_HALF_POS
Read
Constant in order to control arithmetic.
Maximum half negativ number, GP_HALF_NEG
Read
Constant in order to control arithmetic.
Retain range
read/write
These registers can be accessed as the flag/retain range.
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