AE Solutions SI-BMS - Platform / Architecture Selection Guide*

Safety Certified PLC Siemens S7300F Siemens S7400F Tricon Trident A-B Control Logix
I/O Architecture  
1oo1D X X --- --- X2
1oo2D --- X --- --- X2
2oo3 --- --- X X ---
Processor Architecture  
1oo1D X X --- --- X
1oo2D --- X --- --- ---
2oo3 --- --- X X ---
I/O Concepts  
Max I/O1 150 3000 3776 600 1000
Remote I/O X X --- --- X
Communication Protocols Supported  
ProfiSafe X X --- --- ---
ControlNet --- --- --- --- X
Modbus RTU X X X X X
Ethernet X X X X X
General Information  
Max SIL 3 3 3 3 24
Process Availability3 * **** **** *** *
Total Installed Cost $ $$$ $$$$ $$$ $$
Lifecycle Cost Analysis5 $ $$ $$$$ $$$ $$$

* Information provided is typical. Please contact factory for advice on your particular application

1 Single processor

2 Refer to Rockwell Reference Safety Manual; in many instances the minimum architecture allowed is 1oo2D

3 Based upon Markov Model of the following architecture:  simplex pressure transmitter, maximum allowed processor architecture (I.e. redundant), and simplex on/off ball valve with a 1 year functional test interval

4 SIL 2 requires redundant input channels on separate cards and outputs connected to inputs when using standard output modules for diagnostics

5  Lifecycle Costs are based upon 15 years of service with a nuisance trip rate of $10,000 per incident for a 50 I/O system.