The 1785-L80E is an EtherNet enabled programmable controller manufactured by Allen Bradley as part of the PLC-5/80E controller series. It comes with 100K words of user memory as well as an I/O capacity of 3072 which is used in factory floors to control the field device processes linked to it. The 1785-L80E controller is placed at 1771 I/O chassis’ leftmost slot and it operates on a backplane current of 3.6 amperes 5 volts DC, and also dissipates a heat of 65 BTU per hour during operation. This controller uses the 1770-XYC battery module as well as memory modules with lithium battery backup including the 1785-M100, 1785-ME, 161785-ME32, or 1785-ME64. Allen Bradley 1785-L80E supports 8-, 16-, 32-point, as well as 1771 intelligent I/O modules. It also features a maximum I/O scan time transfer speed of 10 milliseconds for remote I/O rack at 57.6 kilobytes per second, 0.5 milliseconds for the extended-local input and output adapter, and 3 milliseconds for remote I/O rack at 230.4 kilobytes per second. The Allen Bradley 1785-L80E controller comes with a processor of 100K words SRAM maximum user memory; also, it supports an all-out of 65 I/O chassis link and a maximum of 24 I/O racks. This processor addresses input and output hardware in three modes, which are; 2-slot mode addressing any mix of 8-point and 16-point pair module, 1-slot mode which addresses a combination of 8, 16-point and 32-point I/O pair modules, as well as half-slot mode which supports a mix of 8, 16, and 32-point modules. This module also comes with one RS-232-C, 423 and 422-A serial communication port. The device features an internal circuit clock with an accuracy variation of ± 5 min per month with a rated operational temperature of 0 – 60 degrees Celsius at non-condensing humidity 5 – 95 percent with no derating. It weighs approximately 3.0 pounds and has an open enclosure.

The 1785-L80E is a module designed and distributed by Allen Bradley. It is a Programmable Logic Controller used for applications that have complex control requirements. This processor has manual and automatic modes to implement analog, as well as discrete, control. It supports motion, counting, calculation, and is able to deploy advanced algorithms for control including PID. This unit features a one hundred thousand (100,000)-word internal memory capacity that cannot be expanded. The 1785-L80E has an internal 1785-XYC Lithium battery. The 1785-ME16, 1785-ME32, 1785-ME64, and 1785-M100 memory modules are available for non-volatile memory backup. The PLC supports 8 point, 16 point, and 32 point modules, in addition to the 1771 I/O modules. This unit has 1 Ethernet port that comes with auto-negotiation capability, 2 DH+, and Remote I/O ports, as well as 422-A, 232-C, and a 423 serial port. DF1 Half and full-duplex support are also provided. The 1785-L80E supports up to 93 I/O chassis and up to 32 Remote connections per link. It can control up to any mix of 3072 I/Os, or 3072 inputs and 3072 outputs. This unit requires 3.6 amperes of backplane current. It has an open enclosure and installs on the leftmost slot of the 1771 chassis. The 1785-L80E is rated to withstand an operational shock of 30 G. It can sustain a vibration of 1 G at 10 to 500 hertz. The module is certified by CE, CSA, C-TICK, and UL. It is rated for heat dissipation of 65 BTU/hr and weighs approximately 1.38 kilograms, or the equivalent of 3 pounds.