West Control Solutions KS 800 ISO1745 Interface Manual - Manual (Page 29)

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:
w 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.
w All data of a message must be defined, omissions are not permissible.
w 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.
w 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.
w 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)
FB
no.
Fct
no.
Type
no.
Number
of
REAL
values
REAL
values
Number
of
INT
values
INT
values
Examples
29 9499 040 49411