Digital input table

Devices supported

ATTENTION: Digital Input values reside in table 1. Therefore, they are not applicable for controllers with a Data Table setting of Holding Registers Lower or Holding Registers Upper.

The following table lists the devices that support the Digital Input Table, and their formats.

Device Supported Address Format Range

DPR180

DI Digital input. Compare: AI. See also: input. [n] [param]

[n] = 1 to 36

DPR250

DI [n] [param]

[n] = 1 to 48

DR4300

DI [n] [param]

[n] = 1 to 2

DR4500

DI [n] [param]

[n] = 1 to 2

UDC3300

DI [n] [param]

[n] = 1 to 2

UMC800

DI [n] [param]

[n] = 1 to 256

HC900 Hybrid controller.

DI [n] [param]

[n] = 1 to 256

TrendView

DI [n] [param]

[n] = 1 to 32

Parameters

The following table lists the details of the Digital Input Table parameters.

Param Address Line Param Format Access Devices

Digital Input Value Read-only values that are usually scanned from the controller registers but can be from other server addresses. Input values can represent eight discrete states. Up to three values can be read from an address in order to determine a state. See also: controller, scanning.

DI [n] VALUE1

Discrete (bits).

[Status Point A type of standard point that is used to represent discrete or digital field values. See also: dual-bit status point, standard point. Only]

RO

DPR180, DPR250

Digital Input Value

DI [n] VALUE2

Discrete (bits).

[Status Point Only]

RO

DR4300, DR4500, UDC3300, UMC800, HC9003, TV