Siemens 3RS2

Digital devices with IO-Link
6
6.1 Performance characteristics
The 3RS2800-.BA40 temperature monitoring relays for IO-Link o󹪜er the complete functionality
of the 3RS2600 digital devices and many other performance features in addition to monitoring
functions:
• Measured value transmission (including resolution and unit) to the higher-level control.
Local display and transmission of the temperature unit (°C or °F) can be parameterized. The
temperature measured value transferred from temperature monitoring relays with more
than one resistance sensor can be adjusted. Some device versions allow you to set which
value is transferred cyclically.
• Transmission of alarm 󹪞ags to the higher-level control
• Comprehensive diagnostics capability by querying the precise cause of the error in the
diagnostic data record
• Remote parameterization is also possible (instead of local parameter assignment)
• Fast parameterization of identical devices by duplicating the parameter assignment in the
higher-level control
• Parameter transfer by means of Upload to the higher-level control via IO-Link call or by
parameter server
1)
(only when using an IO-Link master as of
IO‑Link Communication Speci󹪝cation V1.1 or higher)
• Blocking of local parameterization via IO-Link possible
• To prevent automatic startup after a power failure and to avoid losing diagnostic data, errors
can be con󹪝gured so that they are saved to non-volatile memory.
• Linking to a higher-level control makes it possible to assign parameters to the monitoring
relays via a display unit. The measured values can be displayed directly in a control room or
at the machine/control cabinet.
• By means of IO-Link the devices can also be connected to the Siemens "MindSphere" open IoT
operating system.
1) The parameter server provides an assurance of consistent central data management in the
event of changes to parameters (made locally or via the control). The "Parameter server"
function supports the automatic backup of parameter data (automatic re-assignment of
parameter data if a device is replaced).
Up until now, using redundant sensors and/or analog signal converters to transfer measured
values to a higher-level control incurred signi󹪝cant additional expense and wiring e󹪜ort.
Combining the autonomous monitoring relay with IO-Link communication reduces this wiring
e󹪜ort and lowers costs.
As the availability of up-to-date measured values means that the higher-level control can take
care of the control tasks within the plant, the continued availability of the output relays on the
monitoring relays increases the plant's operational reliability (e.g. by shutting down the plant if
limits are exceeded that should not even be reached under normal operating conditions).
3RS2 temperature monitoring relay
Equipment Manual, 02/2022, A5E42462552002A/RS-AB/002 49