Safety PLCs
GuardPLC 1200 Packaged Safety Controller
Number of safety-related
digital inputs
Nominal Input Voltage
On-State Voltage
On-State Current
Off-State Voltage
Off-State Current
Number of safety-related
digital outputs
Output Voltage Range
Output Current
The GuardPLC 1200 is a safety-related compact Programmable
Electronic System (PES), which is designed in accordance with IEC
61131. Despite its small size, it complies with the requirements for a
control system with the safety integrity level (SIL 3) according
IEC 61508.
The GuardPLC 1200 is designed for smaller applications that
require functional safety and that can be serviced with a fixed
number of I/O points. The compact size of the GuardPLC 1200
combined with DIN rail mounting allows deployment even under
cramped space conditions.
The GuardPLC 1200 includes a power supply, CPU, Watchdog, 20
digital inputs, 8 digital outputs plus 2 counters and communication
ports, all incorporated in a rugged plastic housing.
Typical Applications
Perimeter guarding for Robot/weld cells
Perimeter guarding for Packaging Machines
Entertainment industry (ride control and ski lift control)
Burner Management
Press Controls
Rugged plastic housing
DIN rail mounting
I/O self test
30 I/O points
24V digital I/O
Multiple I/O test points
Certified by TÜV for use in applications to SIL 3 according to
IEC 61508; EN 954–1, Category 4
• Programmed with RSLogix Guard Software
• RS–232 port for ASCII communication (read only)
• Ethernet port for programming, configuration and Peer-to-Peer
Number of safety-related
Inputs per counter
Counter Resolution
Input Frequency
Power Supply Voltage
Power Rating
Ambient Temperature
Storage Temperature
Operating Humidity
Dimensions (WxHxD)
20 (not electrically isolated)
24V DC
10-30V DC
2mA @ 10V DC, 13mA @ 30V DC
5V DC (maximum)
1.5mA per channel (maximum)
4mA per channel (minimum)
8 (not electrically isolated)
18.4 to 26.8 V DC
Channels 1 through 6: 0.5A per channel
Channels 7 & 8: 2A per channel
3 (Input A, Direction, Gate/Reset)
24 Bit
100 kHz (maximum) in counter modes
24V DC(20 / -15%), ≤ 15% ripple
8A (maximum)
0°C to 60°C (32°F to 140°F)
-40°C to 85°C (-40°F to 185°F)
5 to 95% (without condensation)
Operating: 30g non operating: 50g
Operating: 2g @ 10 to 500Hz
90 x 160 x 87mm
(3.54 x 6.29 x 3.42in)
0.68 kg