Interconnections Between The Matrix And Safety Program; Using Imported F Channel Drivers In The Matrix - Siemens SIMATIC PCS 7 Operating Manual

8.6

Interconnections between the matrix and safety program

When establishing interconnections between the matrix and the remainder of the safety
program, you must ensure that the interconnected blocks are all in the same shutdown
group, or that the right communication blocks have been installed between the shutdown
groups.
8.7

Using imported F channel drivers in the matrix

There is a difference between internal and external F-channel drivers in the Safety Matrix.
Internal F-channel drivers are created by the Safety Matrix during transfer in a "Driver chart"
and interconnected with the Safety Matrix. Internal F-channel drivers are recreated whenever
any changes affecting the "chart and parameters" are made, whereby any interconnections
previously established are lost and changed parameters to the inputs of the F-channel
drivers are overwritten with the default values. This is why you are not allowed to change
parameters or perform interconnections in this driver chart.
The operation of the safety matrix must be enabled in the CFC by a "1" signal at the
EN_SWC input. This can be done by logic or interconnection to the input channel driver of a
key switch. The F-password is also requested in an online mode of the ES. The operator
permissions configured in the Safety Matrix Engineering Tool are required for the operation
of an OS.
If parameter changes are required to the F-channel drivers (an extended input signal range
for example) or if signals used by an F-channel driver also used elsewhere in the program
(for example, for the display or interlocking in the standard program), it is recommended that
you create a process tag (CFC) for the signal. In this case, you can enable the "Imported
channel drivers (IEA support)" function when transferring the matrix to the project.
In this way, not only the process value and its status is interconnected to the Safety Matrix,
the inputs "SIM_IN", "SIM_ON", and "SIM_V", which the matrix uses for the maintenance
function, as well as "ACK_REI" and "ACK_REQ", are also used to signal an acknowledgment
request in the Safety Matrix and perform acknowledgment from here.
To enable the Safety Matrix to integrate external F-channel drivers into its full scope of
functions, the "SIM_IN", SIM_ON", "SIM_V", and "ACK_REI" I/Os may not be interconnected,
since the Safety Matrix does not change the existing logic and thus cannot interconnect the
inputs of the F-channel driver.
Channel drivers of types F_CH...*, F_PA..., F_Q... and F-typicals can be incorporated from
Safety Matrix V6.2 and higher using the "customer-specific" option.
* however, not those explicitly indicated F_CH_AI, F_CH_DI/DO, F_CH_BI/BO
Compendium Part B - Process Safety (V8.2)
Operating Manual, 07/2016, A5E35031794-AB
8.6 Interconnections between the matrix and safety program
Configuration with Safety Matrix
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