The Allen-Bradley 1785-L20B is an Allen-Bradley PLC5 Processor Module Controller. This controller has 16K words of user memory, supports 512 (any mix) or 512 in + 512 out (complementary).
1PC New 1785-L20B PLC5/20 Processor Module 1785L20B
1785-L20B CM Profile :
The Allen-Bradley 1785-L20B is a Programmable Logic Controller (PLC) module. This product is a PLC controller that belongs to the legacy PLC5 product family.
The 1785-L20B features a variety of embedded communication ports such as One (1) DH+ (Fixed), One (1) DH+/Remote I/O (Adapter or Scanner) One (1) serial port, configurable for RS-232 and 423 and RS-422A standards. These communications ports support individual configuration and independently functions from each other, They can be used simultaneously to implement the intended functions such as communication to compatible partner devices for data exchanges, communication with visualization devices and interaction with programming workstation.
Allen Bradley 1785-L20B Technical Specifications:
| Brand | Allen-Bradley |
| Manufacturer | Rockwell Automation |
| Part Number/Catalog No. | 1785-L20B |
| Remote I/O: | 12 chassis |
| Maximum Number of I/O Racks: | 4 (0-3) |
| Battery: | 1770-XYC |
| Memory: | 16 Kwords |
| Backplane current load: | 2.3 A |
| Power Dissipation: | 12 W |
| Power Supply: | 1771-P4S, -P6S, -P4S1, -P6S1 |
| Product Family: | PLC5 |
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| 1768-L45/D | 1336-L5 | 1761-L16BWA/C | 1785-LT3 |
| 1773-L1A | 1769-L16ER-BB1B | 1747-L20C/C | 1766-L32BXBA/C |
| 1769-L18ER-BB1B | 1756-L55M16 | 1747-L30C | 1794-L34 |
| 1747-L552/D | 1772-LZP/D | 1747-L543P | 1769-L23E-QBFC1B/A |
| 1762-L24BWA/C | 1769-L30ER/A | 1747-L30C/C | 1785-L60L |
| 1747-L40C | 1747-L30L/B | 1747-L20E | 1761-L32AWA/A |
| 1762-L40AWAR | 1762-L40AWA/A | 1766-L32BWAA | 1785-L60B |
| 1769-L27ERM-QBFC1B/A | 1775-L3 | 1756-L63S | 1756-L61/B |
| 1785-L40L/D | 1756-L1M3 | 1772-LX/C | 1769-L19ER-BB2B |
| 1756-L73 | 1785-LT4 | 1756-L61S | 1785-LT/B |
| 1747-L20L | 1756-L73/A | 1756-L1M1/A | 1785-LT2 |
| 1761-L32BWA | 1785-L30B/C | 1785-L40C/E | 1785-L40L/A |
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