The B862–001 register output module provides a 5 V TTL or CMOS-compatible interface between a PLC and peripheral field devices. The B862–001 register output module operates in either BCD or binary mode.

The desired mode is operator selectable, with the 16-bit output either having BCD values in the range 0000 to 9999 or binary output in the range 0000 (HEX) to FFFF (HEX).

The B862-001 is a 4-channel register output module with four 16-bit registers. A channel is defined as a 16-bit data path. The channels can be configured as 4 BCD or 4 binary registers via an appropriate switch setting.

The module is organized in a group strobe arrangement with the 16 datalines associated at a given moment with one of the 4 strobe lines. Each strobe line addresses one of the devices on the data bus and enables it to transmit data to a given peripheral device to the exclusion of the other devices. The data lines are routed to all devices. The B862-001is operated in module-select mode. In module- select mode, all 4 data registers are transferred in a single OURBUS cycle.