NEMS new value/first value and process indicator system
- New value/first value messsage
- 16 alarm inputs open-circuit current/closed current
- Isolated inputs and power supply Line voltage 24V DC or 230V AC
- Relay outputs for collective fault and Watchdog circuit
- Fault / operation messages
- Safety interlock circuits for direct connected wiring
- To connect to an alarm system with max. 1024 alarm inputs via LSB
- Display- and operation terminal for visualization and history function via LSB
- 2nd RS232 interface for connecting a radio clock
- RS232 interface (optional) for connecting a PC with configuration software
24 VDC or 230 VAC
RS 232 (optional)
2 Relais with floating contacts, freely programmable
|Indicator function resolution||1 ... 127 ms, (100 ms NEMS230)|
Black sheet steel, size 72 x 144 x 200 mm
|Contactor voltage||24 VDC or 230 VAC|
The NEMS is a new value/first value and process indicator system consisting of individual NEMS16 devices, each with 16 indicator inputs. By networking via a LAMTEC system bus, it is possible to create an indicator system with a maximum of 1024 signals (64 individual devices). Each indicator input (DC18-30V) can be converted to fault or process status signal as well as normal open or closed contacts and is displayed by means of a luminous, three-colour LED on the front panel.
When an indicator input is switched to the active state, the relevant LED changes over to a flashing light or a continuous light.
It is also possible to print out the signals in chronological order via a serial logging printer or a display and operating terminal connected at the LAMTEC SYSTEM BUS.
The device contains a real-time clock, which is synchronised with another NEMS16 in the system.
- Process monitoring
- Monitoring of safety interlock chains in combustion engineering
- Chronological recording and processing of fault values and operating data
- Coupling to standard field bus systems (e.g. Profibus) is possible as an option
- Logging and further processing in conjunction with higher-level computer systems
- Decentralised recording of locally distributed signals