Specifications

1070 072 131-102 (96.08) GB
BUEP64 Protocol9-24
9.11.1.2 RST / PST Command Type — PW5
Parameter word Contents
High byte LOW byte
PW5 RST command code PST command code
Example 44H 44H
Data module Data module
Fig. 9-9 BÜP64 — RST/PST Command type
Only the "Data module (DM = 44 hex)" command types exist for RST and
PST when the "3964R" protocol is implemented; the following situations
may therefore occur:
- SEND: Transmit data from the RST data module to the PST data module
- FETCH: Fetch data from the PST data module and write it to the RST data mod-
ule
9.11.1.3 RST Address: DM Number — PW6
Parameter word Contents
PW6 RST address
Example AH
Data module 10
Fig. 9-10 BÜP64 — RST Address: DM Number
The PW6 parameter word indicates the data-module number for the RST;
data modules DM0 to DM255 can be addressed.
9.11.1.4 RST Address: Block Address of Central Processing Unit — PW7
Parameter word Contents
PW7 RST address
Example 8H
ZS1
Fig. 9-11 BÜP64 — RST Address: Block address
The block address of the respondent central processing unit is used to
address the RST in the CL500 system;
NOTE –
In comparison, the central processing unit on the PST is addressed in the
coordination marker (please refer to the description of the Siemens
3964R/3964 Data Transfer Controller).