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- Stock: In Stock
- Model: 1785-L20B
- Weight: 2.00kg
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1785-L20B AB PLC Standard PLC-5 Processor 1785 Series Original brand new
PLC-5 Processors
Standard PLC-5 Processors
Any mix means that any number of the I/O can be inputs and any number can be outputs, with no placement restrictions.
Complementary means that to configure this many I/O, pairs of modules must have duplicate addresses. This pair must be either 2 output modules sharing the same output image bits or an input module and an output module complementing each other. In either case, module placement must conform to these restrictions.I/O rack is an I/O addressing unit that can contain a max. of 128 I/O with unique addressing of I/O modules or 256 I/O with duplicate addressing of I/O modules.
Cat. No. | Processor | User Memory Words, Max.? | Memory Types | Total I/O, Max. | Analog I/O, Max. | I/O Scan Time per Rack? |
Standard PLC-5 Processors | ||||||
1785-L11B | PLC-5/11 | 8K | •Battery-backed static RAM | •512 (any mix) or | 512 | •10 ms at 57.6 kbit/s |
1785-L20B | PLC-5/20 | 16 kB | •Battery-backed static RAM | •512 (any mix) or | 512 | •10 ms at 57.6 kbit/s |
1785-L30B | PLC-5/30 | 32K | •Battery-backed static RAM | •1024 (any mix) or | 1024 | •10 ms at 57.6 kbit/s |
1785-L40B | PLC-5/40 | 48 kB‡ | •Battery-backed static RAM | •2048 (any mix) or | 2048 | •10 ms at 57.6 kbit/s |