GE DS200DTBAG1A Digital Contact Terminal Board

GE DS200DTBAG1A Digital Contact Terminal Board

Part Number DS200DTBAG1A Manufacturer General Electric Country of Manufacture As Per GE Manufacturing Policy Series Mark V Function Module Availability In StockDS200DTBAG1A is a Digital Contact Terminal Board manufactured by General Electric as part of the Mark V LM Series used in gas turbine control management systems. Q11, Q21, and Q51 are the locations of the Contact Input Termination Module (DTBA). The first 46 contact inputs in the same digital core are connected to TCDA through DTBA. To enable fail-safe contact input functionality, the inputs can be configured in the TCDA IO Configuration to invert the contact sense. JY receives 125 V dc power from the DTBA board. 

The TB2 terminal board allows the excitation voltage for contact inputs DTBA and DTBB terminal boards in the digital cores to be 125 V dc from core or 24 V dc from core. Implementation of the desired contact input excitation option is done at the factory. To provide a fuse isolated and current limited interrogation voltage for the contact inputs, the Mark V LM controller draws either 125 V dc or 24 V dc from the power distribution core. By cutting off the interrogation voltage, jumpers on the DTBA and DTBB terminal boards can be utilized to isolate field grounds. 

They are connected in eight-contact input groupings. Changes to these jumpers should only be made when the turbine is not in operation. On the TCDA board, which is in Location 1 of the digital I/O core, each contact input is optically isolated. The CPU on the TCDA board assigns a time stamp to each contact input within 1 millisecond of a status change. Whenever a contact input's state changes, the operator interface printer can record the time stamp if the input is chosen for logging. If the contact input circuit fails, diagnostic checks constantly run and sound an alert.

Benefits

 Single slot CPU 

 Provides 1 Mbyte of battery-backed memory in the same slot (up to 512 Kbytes available for use by ladder diagram application program)  Supports floating point calculations 

 Up to 12K discrete inputs and outputs (any mix - simplex mode only); 2048 voted discrete inputs, 2048 voted discrete outputs Up to 8K analog inputs (simplex mode only) and 8K analog outputs (simplex mode only); 1024 voted analog inputs 

 0.4 microseconds per boolean function 

 64 MHz, 80486DX2 microprocessor 

 Supports IC660/IC661 I/O (and IC697 I/O in simplex mode only) 

 Programmed by MS-DOS

, or Windows

 software products running on Windows

 95 or Windows NT

 over Ethernet TCP/IP or through the SNP port. 

 Configurable data and program memory 

 Battery-backed calendar clock 

 Three position operation mode switch 

 Password controlled access 

 Remote programmer keyswitch memory protection 

 Four status LEDs 

 Software configuration (No DIP switches or jumpers) 

 Reference information inside front door 

 In-system upgradable firmware

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