B-TEK Scales T405S, Service Manual

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T405S Indicator Service Manual 87
7.5 PLC Configuration information
7.5 PLC Configuration information
At the PLC select the size that matches the number of bytes for each item configured
in the indicators data type setting. If possible use the same data type for all data.
7.5.1 ModBus/TCP
Starting Register Locations for PLC Configuration
Input Read Only 30001 (Mirrored at the Read/Write Locations)
Input Read/Write 40001
Output Read/Write 41025
If connecting to a PLC there are required configuration settings in the SETUP >
PORTS menu.
In the PROTCL menu set TYPE x = PLC and BIND x = Enet x
In E-NET menu you must configure the proper network IP address settings in IP
ADDR, set DHCP = OFF (PLC's are not DHCP reliant), and CONN > E-NET x >
TYPE x = OFF (PLC’s do not use Client/Server topology)
In PLC menu configure the settings as required for the connected PLC network.
DATA TYPE TABLE
Typical PLC Terminology Indicator Terminology Data TYPE Size
CHAR / SBYTE SINT8 8 Bits (Signed Value / -127 to 127)
BYTE / UBYTE UNIT8 8 Bits (Unsigned Value / 0-255)
SHORT / SINT SINT16 16 Bits (Signed Value /-32767 to 32767)
WORD / UINT UNIT16 16 Bits (Unsigned Value / 0 to 65535)
LONG / SDINT SINT32 32 Bits (Signed Value / -2,147,483,647 to 2,147,483,647)
DWORD / UDINT UNIT32 32 Bits (Unsigned Value / 0 to 4,294,967,295)
REAL FLOAT 32 Bits (Signed Decimal Value / 1.0E-37 to 1.0E37
2 Byte Example
Indicator Data Type (out) ModBus Register
SINT16 41025
SINT16 41026
4 Byte Example
Indicator Data Type (out) ModBus Register
SINT32 41025
SINT32 41027