Each chassis consists of two Modbus Slave modules located in Slots 3 and 4. These slave
modules communicate with redundant Modbus host systems up line. The CoProcessor
installed in Slot 1 is the Controlinc Network Master to a ring field network. Two ports of the
Network Master module are connected to Network Interface Module (NIM) Model M124I
with redundant, isolated ports. Each NIM has connections to the redundant Network Master
modules of the redundant chassis. Any one of the four ports may acquire data from and
control all actuators in the field in either direction around the network.

Multiple M250N systems may be networked from a single host or redundant
hosts to automate any size system from a few valves to thousands of valves
covering a large network area. Ten (10) independent processors ensure full
redundancy of all functions in a single unit. All components except display
are redundant with double-redundant host links to redundant hosts and automatic
processor hot swapping. Host equipment is not required to implement
any fail-over logic. Full-time redundant Modbus host links are standard.
Plug-in modular construction and DIN-rail mounting of components ensure
minimum MTR, minimizing down time. LCD touch panel provides valve actuator
monitor and control of all valves in case redundant host links fail.
All valve status and alarms may be displayed by the LCD touch panel
for maintenance purposes. The LCD touch panel is a valuable troubleshooting tool during
system commissioning. A more detailed description of operation is provided in the Theory of
Operation section of this manual.
DEIF D45, E45 & B45 Meters for DIN rail mounting
DEIF DCF-Q96 DC integrator, pulse transmitter
DEIF DCP2 (24V) DC power supply
DEIF DLQ series Illuminated marine bridge instrument
DEIF DIM-Q Insulation monitor
DEIF DLQA series Illuminated 360° azimuth indicators
DEIF DLQW series Watertight marine instruments with Illumination
DEIF DM 400 gas Integrated systems
DEIF DM-3 Multi-function system
DEIF DM-4 gas Delomatic 4 gas
DEIF DM-4 hydro Delomatic 4 hydro
DEIF DM-4 marine Integrated systems
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