The H1750M series board level digital I/O
products provide direct interface to industry standard mounting racks and I/O
modules. Mounting racks such as the WRC4-A16H and WRC4-A24H can be controlled directly
with the H1750M boards.
The status of up to 24 digital
inputs and control outputs are communicated to any host serial port in
Modbus RTU or DGH ASCII using jumper-selectable RS-232 or RS-485.
H1750M series allows the user to specify the direction of each I/O line as
either an input or an output bit. Bit addresses may be specified in two
different formats, using either hexadecimal or decimal numbers. The I/O
assignments are saved in EEPROM so that all pin directions are
automatically configured when the device is powered up. Assigning the data
direction of each I/O line may be specified individually or all at once
using simple commands from the H1750M command set.
versions are available. The H1750M-1 shown to the right contains a female 50-pin ribbon
connector mounted on the bottom of the PC board. The H1750M-2 contains a male
50-pin ribbon connector mounted on the top of the PC board.