User guide

6.2.3 Block access (overall block)

This access can be used for reading and writing all parameter (code B2) and configuration data (code B3) of

a function. The following conditions are applicable for this access:

For writing data with ‘Code B3’, the unit must be switched to configuration mode (Ä see page 14

‘OpMod’). All new configuration data and parameters entered are only effective, when the unit was

switched back to on-line.

All data of a message must be defined, omissions are not permissible.

If all parts of a message in the instrument are unused (HW and SW options), the complete message

must be transmitted nevertheless. Checking the non-available data is omitted.

With faulty block write accesses, the following rule is applicable: A message is answered with NAK, if

min. one datum is faulty. Already valid values are stored.

If the function number is omitted, function 0 (general) is addressed.

The general structure of a message with block accesses with code B2/B3 is shown below. The exact message

structure (between

STX and ETX) for the individual functions can be found below the relevant code table.

Message structure with data specification:

Computer transmits data

to KS800:

EOT STX , , = , , ... , , ... , ETX BCC

Addr

Code (B2, B3)

FB no.

Fct no.

Type no.

Number of REAL values

REAL values

Number of INT values

INT values

KS 800 replies: ACK or NAK in case of failure

Message structure with data request:

Computer requests: EOT

ENQ

Addr Code (B2/B3) FB no. Fct no.

KS800 replies:

STX , , = , , ... , , ... , ETX BCC

Code (B2/B3)