The 1785-V80B processor belongs to a series of PLC-5 processors. This processor has the same instruction set as the enhanced PLC-5 processors PLC-5/80. Additionally, the 1785-V80B is also compliant with the C.1 VMEbus specification. That means that the 1785-V80B processor can be connected directly to a VMEbus system bus, and that 1785-V80B can be used with other VMEbus CPU modules. 1785-V80B can interface with VMEbus I/O modules through a VMEbus communication interface. 1785-V80B processors do not use EEPROM memory modules.
1785-V80B has a memory of up to 100,000 words with a limit of 32,000 words per data table file. The 1785-V80B can address total I/O of 2944, and those I/O can be arranged complementary as 2944 of them are input and 2955 are output I/O. 2944 analog I/O can be addressed by 1785-V80B.