Siemens SIMATIC S7-400H - Special Fault Tolerant Leds; Configuring Single Operation

Single Operation
B-4
Automation System S7-400H Fault-tolerant Systems
A5E00068197-07
Table B-1 Differences between S7-400 and S7-400H, continued
Function H-CPU
redundantsystem
mode
H-CPU in single
operation
Standard S7-400 CPU
Operation as DP slave Yes No No
Dynamic modifications to
the system
Yes, as described in
the manual “System
Modification during
Operation Using CIR”.
Yes, as described in
the manual “System
Modification during
Operation Using CIR”.
Yes, as described in
the Chapter 11 for
redundant operation.
Special fault tolerant LEDs
LEDs REDF, IFM1F, IFM2F, MSTR, RACK0 and RACK1 show the response
specified in the following table.
LED Response
REDF Dark
IFM1F Dark
IFM2F Dark
MSTR Lights
RACK0
Lights
RACK0
Lights
RACK1
Dark
RACK1
Dark
Configuring single operation
Requirement: The “S7 Fault-Tolerant Systems” option pack must be installed. No
synchronization module should be in the H CPU.
Perform the following steps:
1. Insert a SIMATIC-400 station in your project.
2. Configure the station with the fault-tolerant CPU in accordance with your
hardware setup. For single operation, you must insert the fault-tolerant CPU in
a standard rack (Insert > Station > S7-400 Station in SIMATIC Manager).
3. Assign parameters to the fault-tolerant CPU. You can use the default values or
customize the necessary parameters.
4. Configure the necessary networks and connections. For single operation, you
can configure “fault-tolerant S7 connection” type connections.
You will find help on the procedure in the SIMATIC Manager Help topics and in the
Help of the “S7 Fault-Tolerant Systems” option pack.