ZM400 Series Indicators 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
Содержание ZM401
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