Siemens SINUMERIK 840D Description Of Functions page 180

3 Safety-Related Functions
3.12 SI I/Os using fail-safe modules connected to PROFIBUS DP (840D from SW 6.3.30)
2.
PROFIsafe PROFIsafe is a PROFIBUS profile:
•
for fail-safe data transfer between fail-safe components (F master and F slave)
on PROFIBUS DP.
The PROFIsafe profile is characterized by the fact that the safety-relevant
functions are implemented in the safe terminal nodes, i.e. the F/CPUs, the
distributed slaves and the actuators/sensors/field devices using the standard
PROFIBUS functions.
The useful (net) data of the safety function plus the safety measures are sent.
This does not require any additional hardware components, since the protocol
chips, driver, repeater, cable can still be used as they are. Therefore both
standard components and F components can be used on a PROFIBUS system.
3.12.2 Available fail-safe modules
Presently, the following fail-safe modules are available for the distributed
ET 200S distributed I/O
system I/O system ET 200S:
•
•
•
•
3-180
SINUMERIK 840D/SIMODRIVE 611 digital SINUMERIK Safety Integrated (FBSI) - Edition 11.03
There are two classes of master:
•
DP master, Class 1 (DPMC1):
Central master devices that exchange information with the slaves in
fixed message cycles.
Examples: S7-300 CPUs: CPU 315-2 DP, CPU 314-2F DP etc.
•
DP master, Class 2 (DPMC2):
Devices for configuration, commissioning, operator control and
monitoring during bus operation.
Examples: Programming devices, operator control and monitoring
devices
Slaves (passive nodes)
These devices may only receive messages, acknowledge them and
transfer message to the master on its request.
Examples: Drives, I/O modules, etc.
PROFIsafe profile for Safety Technology
Version 1.11, July 2001, Order No.: 3.092
Digital electronic module 4/8 F-DI DC24V PROFIsafe
The fail-safe digital input module (F-DI) has 8 separate inputs. These can
be used for Safety Integrated in pairs for 4 different 2-channel input
signals.
Order No.: 6ES7 138-4FA00-0AB0
Digital electronic module 4 F-DO DC24V/2A PROFIsafe
The fail-safe digital output module (F-DO) has 4 P-M-switching outputs that
can be used for 4 different 2-channel output signals with Safety Integrated.
Order No.: 6ES7 138-4FB00-0AB0
Power module PM-E F DC24V PROFIsafe
In addition to 2 relays to switch the potential busses P1 and P2; 2 fail-safe
digital outputs, P-M switching.
Order No.: 6ES7 138-4CF00-0AB0
Power module PM-D PROFIsafe
Safety-relevant power module for safety-relevant motor starter for safety-
relevant contact multiplier; 6 switching groups
Order No.: 3RK1 903-3BA00
© Siemens AG 2003 All Rights Reserved
11.03