Black Channel/Safety Module 41 (114)
5 Black Channel/Safety Module
The black channel is a transportation mechanism for safety related protocol extensions over a
nonsafe communication media. The safety layer performs safety related transmission functions
and checks on the communication to ensure that the integrity of the link meets the requirement
for SIL 3, cat4/PL e. The black channel can be seen as a virtual link between the safety layers
of the devices.
M
PLC
Safety Controller
Safety
Module
Safety Protocol Transportaon
Anybus CompactCom
Network Interface Module
Fig. 21
The IXXAT Safe T100 is a precertified embedded safety option module which provides device
manufacturers with an easy and cost efficient way to integrate conformant safe I/O signals into
standard automation devices. It connects via its serial black channel interface to the Anybus
CompactCom. The safety module provides digital safe I/O signals that can be controlled via the
network and that can be directly connected to the safety functions of an automation device.
Other standard safety modules can also be used to provide a safety communication interface
for the Anybus CompactCom 40 series.
If it is planned to use serial download to the module, please take this in account when
implementing the use of a safety module or Black Channel.
Anybus
®
CompactCom
™
M40 Hardware Design Guide HMSI-216-126 EN 2.6
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