ALLEN-BRADLEY 442L

Presence Sensing Safety Devices
Safety Light Curtain Interfaces
SafeShield DeviceNet Module
Specifications
Description
The SafeShield DeviceNet interface is a nonsafety rated device that
communicates diagnostic information from any SafeShield safety
light curtain. In a compact 22.5m DIN rail mounted housing it
allows easy wiring and configuration of DeviceNet parameters.
Features
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Connects directly to DeviceNet networks
Auto baud
Change of State and strobe messaging
Rotary DIP switches for MAC ID
Compact 22.5mm housing
Diagnostic capabilities
• Weak signal
• Alignment: number of beams, number of blocked beams, etc.
• Output status
• Setup configuration
• LED diagnostics
• System identification: product name, model, etc.
• System status
• System settings: fixed or floating blanking, auto power-up, etc.
• Diagnostic: error codes, cause of lockout, troubleshooting
suggestions, etc.
Safety Category
Nonsafety rated
Approvals
CE marked for all applicable
directives and cULus
Power Supply
24V DC
Power Consumption
1w
Inputs
RS 233 from SafeShield
Outputs
DeviceNet
Power On Delay
1s
Indication LEDs
See Indicator table
Impulse Withstand Voltage
2500V
Pollution Degree
2
Operating Temperature
-5°C to +55°C (+23°F to 131°F)
Enclosure Protection
IP40 (NEMA 1)
Terminal Protection
IP20
Conductor Size
0.2–4mm2 (24–12 AWG)
Torque Settings—terminal screws
0.4–0.5Nm (3.54–4.43lb•in)
Case Material
Polyamide PA 6.6
Mounting
22.5mm DIN rail
Weight
320g (0.71lbs)
Mechanical Life
N/A
Vibration
10-55Hz, 0.35mm
Shock
10g, 16ms, 100 shocks
Indicators
Label
Colour
Dnet Status
Red/Green
Comm Status
Orange
OSSD Status
Red/Green
2-52
State
OFF
Green ON Steady
Green Flashing
Red Flashing
Red ON Steady
Green-Red-Green
Off
Flashing
On
Off
Red
Green
Status
Interface not powered, or waiting for Autobaud
Interface active and allocated by master
Interface active but not allocated by master
Minor correctable fault (baud rate)
Major fault (possible duplicate address
Power up sequence
Internal Fault
Fault or Warning Require User intervention
No Faults or Warnings
No Safety Communication
Not Safe, OSSD not active
Safe, OSSD active
Presence Sensing Safety Devices
Safety Light Curtain Interfaces
SafeShield DeviceNet Module
I/O Data
Strobe and Change-of-State Output:
Input Assembly = Status (0)
Byte 1, Bit
7
6
5
4
3
Status Data
Restart
Beam Strength Device Warning Device Fault
0
Input Assembly = Modes (1)
Byte 2, Bit
7
6
5
4
3
Floating Blanking Fixed Blanking
Resolution
Modes
Restart Mode
Range Mode
Mode
Mode
Mode
Input Assembly = Diagnostic (2)
Byte 3, Bit
7
6
5
4
3
Diag. Code
Diagnostic Codes
Input Assembly = Beams (3)
Byte 4, Bit
7
6
5
4
3
Beam Data
Count of Beams
2
0
1
0
0
OSSD
2
1
0
EDM Mode
0
0
2
1
0
2
1
0
Product Selection
Inputs
Safety Outputs
Auxiliary Outputs
Power Supply
Catalogue Number
Com. from SafeShield
N/A
N/A
24V DC
442L-MDNET
Approximate Dimensions—mm (inches)
Approximate Dimensions are not intended to be used for installation purposes.
99 (3.89)
22.5 (0.88)
114.5
(4.5)
Typical Wiring Diagram
24V DC
Reset
Light curtain
Out1 Out2
L1 L2 L3
A1
S11
S52
S12
13
23
33
41
K1
MSR127RP
K2
S21
S22
S34
A2
14
24
K1
K2
34
42
M
0V
Light Curtain, Manual Reset,
Monitored Output
Black Blue White Red Shield
}
DeviceNet Connection
2-53