Siemens CP 342-5 - 1.5 Requirements for use

Application and functions
1.5 Requirements for use
CP 342-5 / CP 342-5 FO
Manual, 07/2017, C79000-G8976-C146-10
19
The information in the following table applies to S7 job types BSEND/BRCV, PUT/GET, and
USEND/URCV.
Data length in bytes
1)
Number of S7 connections or number of S7 jobs
S7 communication only
With DP master and 32
DP slaves ET200B
(1 byte I data and 1
byte Q data)
With DP master and 32
DP slaves ET200M
(32 byte I data and 32
byte Q data)
<=1000
16
10
8
2000
16
8
6
4000 16 6 5
8000
8
4
4
16000
4
2
2
32000
2
1
1
1) A maximum of 32 Kbytes can be transmitted with one BSEND/BRCV block, with
PUT/GET/USEND/URCV a maximum of 160 bytes in each case.
1.5
Requirements for use
1.5.1
Operation in control device families
SIMATIC device families
You can operate the CP in the following device families:
● SIMATIC S7-300 stations with the following CPU types:
– Standard
– Compact
– Modular
● SIMATIC C7 compact units in C7 packaging system
● SINUMERIK