GasSecure GS01
Safety Manual
COMMISSIONING
9
3.
COMMISSIONING
Note: On completion of commissioning, the proof test, as described in Section 6,
shall be executed to validate the proper functioning of the safety function.
3.1
Safe communication
The GS01 uses the PROFIsafe profile [RD 3] over PROFINET as tool for safe
communication. In this setup the GS01 acts as F-Slave, a passive communication
peer able to perform PROFIsafe. Its counterpart is the F-Host, a data processing
unit able to perform PROFIsafe and trigger the F-Slave for data exchange. The F-
Host must be compliant with the PROFIsafe requirements so that end-to-end
communication through a black channel, defined by the IEC 61508 standard, can
be established.
3.1.1
Setup
The F-Host owner (normally the engineering company or the end-user) must
address the list of items listed below. Note also Table 3-1, where the main
PROFIsafe parameters used by the GS01 are listed.
The selected gateway must support PROFINET.
The selected safety controller is minimum SIL2 compliant.
The PROFINET (Ethernet) network containing the PROFIsafe
communication must either be on a closed network or be protected from
open access with a security gate.
The assigned F-address for each device shall be unique within a
PROFIsafe naming island (network boundary).
The watchdog timeout must be set within the limits given in Table 3-1.
Verify that the iParameter for the device configuration (cf. Table 1-1) is set
correctly.
Table 3-1: Main PROFIsafe parameters used by the GS01
PROFIsafe
parameter
name
Format
Description
GS01 usage
F_S/D_Address
F_slave =
Usign_16
Unambiguously
assigned F-
device
1 - 65534
F_host =
Usign_16
Address of F-
host
1 - 65534
F_WD_Time
Time,
milliseconds.
Unsigned_16
Watchdog
timeout
15 - 24 seconds
2
2
The GS01 will accept F_WD_Time settings up to 60 seconds. F_WD_Time setting above 24
seconds will invalidate the worst case response time including communication stated in table 8-1.
Worst case response time including communication equals 2 times F_WD_Time plus worst case
detector response time, which is 12 seconds.