Siemens MindConnect IoT2040 - Page 65

Using decremented
start address
Using address
from manual
Getting data from a read
data block
Quantity 1 1 27
Response address offset 0 -1 11
Response quantity 1 1 16
1)
Sample start offset as documented in SENTRON PAC manual - can be used without
decrementing it by 1.
Technical specification
Protocol Description Value Data rate
Modbus RTU - RS485
Data provider
Max cable length
32
1200 m max. 115,2 kBd
Modbus RTU - RS422
Data provider
Max cable length
10
1200 m max. 115,2 kBd
Modbus RTU - RS232
Data provider
Maximum cable length
1
900 m
300 m
152 m
15 m
5 m
< 2 m
2,4 kBd
4,8 kBd
9,6 kBd
19,2 kBd
57,6 kBd
115,2 kBd
4.6 Overview of SIMATIC I/O Shield for MindConnect IoT2040
SIMATIC I/O Shield device has been plugged-in to MindConnect IoT2040 and set up according
to I/O Shield operating instructions. Analog and digital input signals are connected to SIMATIC
I/O Shield connectors.
You can find more information about the SIMATIC I/O Shield Modul in the SIMATIC IOT IOT2000
Extension Modules manual. The following picture shows the SIMATIC IOT2000 Input/output
Module:
Configuring protocols
4.6 Overview of SIMATIC I/O Shield for MindConnect IoT2040
MindConnect IoT2040
System Manual 8/202365