Maximum Length of a PCOM - ASCII Protollframe

[Manfred]

Hello All

Is there a limitation for the length of a Responseframe in the PCOM - ASCII Protokoll,

or is it possible f.e. to read 255 Memory Longs ?

Thanks

Manfred

[Saragani]

Depends on your PLC model.

V2xx and V120 have a buffer size of like 480 bytes.

V570/130/350/1210/1040 have a buffer size of like 960 bytes.

In ASCII protocol ML consumes 8 chars, meaning, you can probably read something like 100-120 MLs in ASCII protocol on V570 (some chars are also taken on header and footer of the ASCII protocol).

GPRS modems reduces the buffer size to like 128-150 bytes.

CANBus also reduces the buffer size.

[Manfred]

Hello

Thanks a lot for the information !

Manfred