Real Time Automation, Inc.
18
1-800-249-1612
External PLC Configuration: Auto-Configure
While in either of the two Auto-Configure Modes, the # of scan lines and the actual scan lines
themselves cannot be edited. Auto-Configure Mode looks at the other protocol and then configures the
Scan Lines within the PLC to match. The PLC Tag/File Names and Data Types will be defined after the
other protocol is configured.
If the PLC is a CompactLogix, ControlLogix, or FlexLogix, the data will be configured according to the
following rules:
Any 8 Bit Signed/Unsigned data will be mapped as
Sint
.
Any 16 Bit Signed/Unsigned data will be mapped as
Int
.
Any 32 Bit Signed/Unsigned data will be mapped as
Dint
.
Any 32 Bit Float and 64 Bit Float data will be mapped as
Real
.
Any Coils or 1 Bit Binary Packs will be mapped as
Bool (1 Bit
).
Any Coils or 8/16/32 Bit Binary Packs will be mapped as
Bit Array (32 bit)
.
Any String Data Types will be mapped as
String
.
If the PLC is a MicroLogix, SLC, or PLC5E, the data will be configured according to the following rules:
Any 8 Bit Signed/Unsigned and 16 Bit Signed/Unsigned data will be mapped as
Int
.
Any 32 Bit Signed/Unsigned, 32 Bit Float, and 64 Bit Float data will be mapped as
Real
.
Any Coils or 1/8/16/32 Bit Binary Packs will be mapped as
Bit Array (16 bit)
.
Any String Data Types will be mapped as
String
.
Regardless of PLC type, the following is also true:
The Read or Write direction depends on whether it is configured as a Read or Write on the other
protocol.
If the other protocol exceeds the number of Sint, Int, Dint, Real, Bool, Bit Array, or String Data
Types the Allen-Bradley PLC supports (see limits on webpage), then nothing will be mapped. You
will see the # of Scan Lines remain at 0 and the main page will display the following error:
o
To fix this error, simply decrease the amount of data you configured on the other
protocol so that the max number of Tag/File Name is not exceeded OR call customer
support to increase the limits.
