Safety Integrated - Industry - Siemens

Ex. No.
11 FB2 / Network 2
Overview of the signals of the network
Signal Source / Target Meaning
ENABLE From network 1 Enable from emergency-stop
circuit
REQ_START From FB1 (standard Start requirement
block)
for ACTUATOR
ACTUATOR To process (indicator Representative for a
light)
"hazardous load".
Description of the network function:
The ACTUATOR load is switched on if the ENABLE from the
emergency-stop circuit is pending and the start requirement
REQ_START is given.
338 Functional Example No. AS-FE-I-011-V10-EN
FB2 / Network 3
Overview of the signals of the network
Signal Source / Target Meaning
TEST_IN From process („1“) Signal from F-DI "1" is
constantly set at F-DI.
TEST To process (indica- Only for demonstrator
light)
tion, no other function.
Description of the network function:
TEST is used to demonstrate passivation of the entire module.
When there is no passivation, TEST is always switched on, as
TEST_IN at the F DI is constantly supplied with "1".
The TEST indicator light is only switched off if F-DI is passivated.