Maximum Consistent Data Lengths In Bytes For Im 308-C As Dp Slave - Siemens SIMATIC S5 Manual

IM 308-C master interface and memory card
Characteristics
3-14
The characteristics of the IM 308-C as DP slave are as follows:
For each IM 308-C as DP slave, the DP master can process up to
122 bytes inputs (DP slave outputs) and up to 244 bytes outputs (DP slave
inputs).
244 bytes outputs (DP slave inputs) is the maximum if all the outputs are
digital with byte consistency over module. For all other cases, see Table
3-10 (bus profile = PROFIBUS-DP).
The values in the table below (maximum consistent data lengths for the
IM 308-C as DP slave) are applicable only for high–speed load/transfer
commands in the slave CPU, e.g. TNB, TNW. The access time for load/
transfer commands must be as short as possible.
Table 3-10

Maximum consistent data lengths in bytes for IM 308-C as DP slave

Maximum consistent data lengths in bytes for IM 308-C as DP slave:
CPU
9.6 19.2
941A 55 30
941B 122 69
942A 57 31
942B 122 69
943A 106 57
943B 122 69
944A 122 122
944B 122 122
945 122 122
922 122 115
928A 122 122
928B 122 122
946/947 122 122
948 122 122
If the IM 308-C is DP master, see the values for maximum consistent data
lengths in Table 3-5 (Page 3-7):
An IM 308-C can be operated as:
– DP master
– DP slave
– DP master and DP slave (precondition: there must be at least two DP
masters on the bus)
Using COM ET 200 Windows, you can set a response monitoring time.
Baud rate in kbaud
93.75 187.5 500 1500
6 3 1 1
14 7 4 2
6 3 2 1
14 7 4 2
11 5 3 1
14 7 4 2
122 64 40 20
122 80 50 25
122 122 122 100
23 11 7 3
35 17 11 5
122 106 66 33
122 106 66 33
122 122 100 50
3000 6000 12000
1 1 1
1 1 1
1 1 1
1 1 1
1 1 1
1 1 1
16 15 11
20 18 14
83 75 58
3 2 2
4 4 3
27 25 19
27 25 19
41 37 29
ET 200 Distributed I/O System
EWA 4NEB 780 6000-02a