T3481A ICS TRIPLEX GUARDED 24VDC OUTPUT MODULE
⇒ Click here for good price T3481A
| Brand/Manufacturer | ICS TRIPLEX/USA |
| Part Number | T3481A |
| Alternate Part Number | T3481A |
| Description | GUARDED 24VDC OUTPUT MODULE |
| Dimennsions | 17.4cm x 10.5cm x 3.5cm |
| Weight | 0.7kg |
Product Details
T3481A Features
Sixteen Guarded outputs (in two groups of eight).
Fault tolerant operation when connected in parallel with another
module of the same type.
Hot-replaceable.
Complete, automatic testing of all output circuits.
Automatic line monitoring detects open and short field wiring
circuits.
Individual front panel indicators on each module show module
fault/active status and shutdown state; additional indicators show
output status and load/fuse fault for each point.
Fuses accessible from front panel.
2500 minimum electrical isolation between field and logic circuits.
The processor modules send triplicated write data commands over the
I/O Safetybus to the monitored Guarded output module. Onboard the
output module the triplicated data are routed to two independent
voters which provide voted data to associated field programmable
gate arrays (FPGA). Each FPGA independently operates one of the two
output control switches. The two output switches are connected in
series with the load.
When both output switches are on, current will flow through the
output and energize a field load. If either switch is off, current
will not flow through the output and the load will be de-energized.
This combination of series output switches and independent drive
signals produces fail-safe activation of the load. Single failures
can only affect one of the output drive signals or switches.
Moore News
Hydropower industry with power industry capabilities.
The working power of the remote I/O is provided by the
corresponding LCU to the unit local control unit (LCU1, LCU2, LCU3,
LCU4).
The LCU should provide an RS-485 serial interface, using the Modbus
(Master and Slave) standard communication protocol interface.
Molex is used for gateway protocol conversion. The module is
directly plugged into AB's 1756 rack and has standard blocks for
programming.
The international standard industrial Ethernet protocol EtherNet/IP
is used between the PLC and the workstation in the LCU.
The communication speed reaches 100Mbps, and the PLC adopts AB
ControlLogix system governor oil pump control loop and ball valve
control loop to enter the unit's local LCU control.
Thermal power industry with power industry capabilities: With the
development of society, network technology, computer technology and
PLC control technology are becoming more and more mature. All
auxiliary control systems of thermal power plants can enter the
whole plant auxiliary network control system to realize complete
monitoring operation in the centralized control room.The level of
automation has been greatly improved, and the efficiency of the
whole plant has been improved.
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