Allen-Bradley GuardPLC 1753, Справочник по безопасности

Страница: 74 / 120

74 Publication 1753-RM002C-EN-P - September 2008
Chapter 6 DeviceNet Safety I/O for the GuardPLC Control System
Checklist for DeviceNet
Safety I/O Modules
For programming or start-up, an individual checklist can be filled in
for every single safety input and output channel in a system. This is
the only way to make sure that the requirements are fully and clearly
implemented. This checklist can also be used as documentation on
the connection of external wiring to the application program.
Checklist for DeviceNet Safety I/O Modules used in GuardPLC Systems
Company:
Site:
Safety Function definition:
SIL input channels in the:
Notes / Checks Yes No Comment
Have you followed installation instructions and precautions to conform
to applicable safety standards?
Have you verified that the electrical specifications of the sensor and
input are compatible?
Have you verified that the electrical specifications of the output and
the actuator are compatible?
Are modules wired in compliance with CAT 4 according to EN 954-1
(1)
if
required?
Have you verified that test outputs are not used as safety outputs?
Are control, diagnostics, and alarming functions performed in
sequence in application logic?
Are HSP and DeviceNet Connection Status Bits monitored in
application logic?
Have you uploaded and compared the configuration of each module to
the configuration sent by configuration tool?
Have you performed proof tests on the system and modules?
(1)
For information on wiring your DeviceNet Safety I/O module, refer to the product documentation for your specific module.