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Honeywell 620-1690 Rack Chassis PLC Module 11/12/14/16/36 PRC RK 19 IN
Product Details:
| Brand Name | Honeywell |
| Model | 620-1690 |
| Catalog | TDC2000 |
| Origin | United States (USA) |
| Dimension | 30*25*20cm |
| Weight | 3kg |
| HS Code | 8537101190 |
| Payment | T/T |
| Sales Price | $500 |
| Warranty | 12 months |
| Lead time | 3-5 work days |
Additional Information:
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| A/I ADAPTOR FOR AMC | Data Hiway |
Description:
During processor Input Status Scan (ISS), the processor momentarily stops solving the control program to latch data present at the input cards. The ISS automatically occurs before every program scan or during program control when the ISS instruction is encountered.
During the ISS, the processor systematically generates I/0 module address data, which is transmitted to all PIOMs on the parallel link. PIOMs decode the address data and in tum generate card selects to alll/0 cards in the 1/0 rack.
After an input module receives a card select, the data present at each input is latched on the input module.At this point, output modules are queried for card faults. The processor can store the locations of up to eight card faults. The most significant address of the faulted 1/0 module is stored in the System Status Table.
The processor then commences program execution. As input instructions are solved, the processor reads the input data from the input module. As output instructions are solved, the processor posts the status of the output instructions in the Output Status Table.
