ABB CRG2501-25A01 Input/output power supply

Description

The PBA connects to an NTMP01 TU. I/O signals enter or leave

the PBA through a cable connection to the TU. An NKTU01 or

NKTU11 cable connects an NTMP01 TU with the PBA. Stan

dard D-type connectors are available on the TU.

To provide better noise immunity, both channels transmit and

receive differential serial signals based on the RS-485 stan

dard. These signals are converted to normal RS-232-C voltage

levels by the TU. Each channel is capable of supporting stan

dard RS-232-C baud rates up to 38.4 kilobaud. The TU also

provides optical isolation to eliminate the possibility of intro

ducing ground loops into the system from improper cable

shield grounding. Channel A (the terminal channel) can be

selected to operate without the RS-485/RS-232-C conversion

allowing it to be used with differential terminals or program

mable logic controllers (PLC).

Station Link

Station communication originates from a DUART circuit on

the controller. This link controls the serial communication

between the controller and the control stations. It has two

modes of operation: Hnet transactions to a Harmony CIO-100

block I/O, or direct operation by the controller via a TU.

The Hnet-to-CIO block mode of operation allows stations to be

placed at greater distances from the controller because the

CIO block contains the physical interface to the station. The

controller is capable of communicating with a total of 128

IISAC01 stations attached to a total of 64 control I/O

(100/110) blocks. The controller can also directly connect to

local IISAC01 stations. Eight stations can be supported at the

five-kilobaud rate and up to 64 stations can be supported at

the 40-kilobaud rate.

The controller makes this direct local connection through the

PBA and appropriate termination hardware. Support for

bypass stations requires a Harmony control I/O module

(IMCIS12, IMQRS12) configured on the I/O expander bus.

Details: If you need an urgent delivery order, please feel free to contact us, and we will do our best to meet your needs.
Price issue: If you find that other suppliers offer a cheaper price for the same product, we are also willing to provide you with a reference price and give you further discounts.
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Contact Person: Chen

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