Siemens CPU 948 User Manual

Block ID: ID = 1: DB data block
ID = 2: DX data block
ID = 0 or 3 to 255: illegal, causes an
error message
Block number Block number of the DB/DX in which the received data are stored
(and from which they are taken by the SEND function in the
transmitting CPU).
Remember that the receive data blocks must be in a random access
memory, using read-only memories (EPROM) might possibly serve a
practical purpose for transmit data blocks only.
Address of the first
received data word
Data word number within the DB/DX in which the first
transferred/received data word was stored.
Address of the last
received data word
Data word number within the DB/DX in which the last
transferred/received data word was stored.
Note
The difference between the addresses of the first and last data
word transferred is a maximum of 31, since a maximum of 32
data words can be transferred per function call.
RECEIVE Function (OB 204)
CPU 948 Programming Guide
10 - 50 C79000-G8576-C848-04

Siemens CPU 948 Specifications

General

Brand	Siemens
Model	CPU 948
Category	Controller
Language	English