Supported File Types

For PLC­3, PLC­5/250, and PLC­5 devices, data can be read and written to the following file types:

File Type Description Comments
N Integer
I Input Not supported for PLC-5/250, SLC-5/04 or SLC-5/05
O Output Not supported for PLC-5/250, SLC-5/04 or SLC-5/05
F Floating Point Not supported for SLC-5/04 or SLC-5/05
B Bit
T Timer PLC-5/250 CTL field is read-only
C Counter PLC-5/250 CTL field is read-only
S Status
A ASCII Not supported for PLC-5/250
D BCD Not supported for PLC-5/250, SLC-5/04 or SLC-5/05
H High Order Integer PLC-3 only
L Long Integer PLC-5/250 only
R Control Not supported for PCL-3 PCL-5/250 CTL field is read-only

For points in the Floating Point (F) file type, use the FLOATING point type.

For points in the BCD (D) file type, use the 3D_BCD or 4D_BCD point type.

When using Recipe Management to read and write in Floating Point files, only floating point types are supported.

For the PLC­2, data can be read from and written to Register Memory only.