Siemens SIRIUS 3RK3 Equipment Manual page 43

The following table lists the expansion modules and their properties:
Expansion module
4/8F‑DI
2/4F‑DI 1/2F‑RO
2/4F‑DI 2F‑DO
4F‑DO
4/8F‑RO
8DI
8DO
Interface modules
You need interface modules for exchanging data between the MSS 3RK3 and higher-level bus
systems (e.g. PROFINET IO or PROFIBUS DP fieldbus).
The DP interface has the following characteristics:
• The interface module constitutes the interface between the MSS 3RK3 and an automation
system via fieldbus (PROFINET IO or PROFIBUS DP).
• The interface module is connected to the 3RK3 central unit.
• A diagnostics display or a PC or programming device can be connected to the interface
module.
Diagnostics display
With the diagnostics display, you can monitor and analyze the diagnostics and status data of the
MSS 3RK3 and acknowledge errors locally or from a central location.
The diagnostics display has the following characteristics:
• The diagnostics display shows fault diagnostics and diagnostics information as plain text on
its display.
• The diagnostics display is intended to be installed in a control panel / control cabinet door and
is connected to the 3RK3 central unit or, if there is one, to the interface module.
• If required, a PC or programming device can be connected to the diagnostics display.
SIRIUS 3RK3 Modular Safety System
Equipment Manual, 07/2020, NEB926253002000/RS-AC/006
Description
Safety-related input module
Safety-related mixed expan‐
sion module
Safety-related mixed expan‐
sion module
Safety-related output module 4 safety-related two-channel semiconductor outputs
Safety-related output module 8 safety-related single-channel relay outputs
Standard input module
Standard output module
Inputs / outputs
8 safety-related, freely parameterizable sensor inputs
4 safety-related, freely parameterizable sensor inputs
2 safety-related single-channel relay outputs
4 safety-related, freely parameterizable sensor inputs
2 safety-related two-channel semiconductor outputs
8 standard inputs (not safety-related)
8 standard outputs (not safety-related)
3.5 MSS 3RK3 system components
Overview
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