Byte definitions – Rockwell Automation 440R MSR241 Minotaur Safety Relay User Manual
Page 4
 
MSR241 DeviceNet for Safety System MSR200
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Byte Definitions 
 
The table below shows the definition of the module 
 
 
Consumed output byte 
Bit 
High
Low
00
K1 energized
K1 de-energized
01
K2 energized
K2 de-energized
02
Reserved Reserved
03
Reserved Reserved
04
Reserved Reserved
05
Reserved Reserved
06
Reserved Reserved
07
Reserved Reserved
 
 
 
Produced Input bytes 
Input byte 1: Configuration and status of MSR210 / MSR211 
Bit 
High
Low
00
Device ready
Monitoring active
01
Interrupt of any input
All inputs valid
02
Cross loop detected
No cross loop
03
Automatic reset
Supervised reset
04
Relay-output active (Safety system)
Relay-output not active (Safety system)
05
EDM dynamic
EDM static
06
EDM-loop open
EDM-loop closed
07
Internal fault or no basic module 
connected 
No internal fault and basic module 
connected 
 
 
Input-byte2: Status of Inputs of basic module and extension modules 1, 2 and 3 
Bit 
High
Low
00
Basic module, input 1 interrupted
Basic module, input 1 valid
01
Basic module, input 2 interrupted
Basic module, input 2 valid
02
Extension module 1, input 1 
interrupted 
Extension module 1, input 1 valid (or 
module not existent) 
03
Extension module 1, input 2 
interrupted 
Extension module 1, input 2 valid (or 
module not existent) 
04
Extension module 2, input 1 
interrupted 
Extension module 2, input 1 valid (or 
module not existent) 
05
Extension module 2, input 2 
interrupted 
Extension module 2, input 2 valid (or 
module not existent) 
06
Extension module 3, input 1 
interrupted 
Extension module 3, input 1 valid (or 
module not existent) 
07
Extension module 3, input 2 
interrupted 
Extension module 3, input 2 valid (or 
module not existent)