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[N] and [B] Parameters of Block or PLC Tags |
Use a PLC or Block Tag to read or write data to a PLC memory.
N1/B1 |
Not used |
N2/B2 |
Data type. For more information, please check topic Data Types |
N3/B3 |
Point address, usually starting at 1 (one) |
N4/B4 |
Maximum number of characters, in case of a String data type (N1 equal to 27 or 28) |
NOTE |
As the structure of GE SRTP protocol allocates a maximum of 200 bytes for a data area, please check topic Maximum Number of Elements per Block Tag for the maximum number of Elements a Block Tag supports, according to the type of data to process. |