Direct commands, 1 – logical mask 0 (mask local), 2 – logical mask 1 (mask network) – Rockwell Automation 1503VC IntelliVAC Plus Contactor Control Module User Manual
Page 125: 3 – logical mask 2 (mask devicelogix), 4 – logical mask 3 (mask him/pc)

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DeviceLogix
1503-UM054C-EN-P – June 2013
Direct Commands
Direct commands are specific commands such as 'open contactor 1'
or 'close contactor 4'
1 – Logical Mask 0 (Mask Local)
Logic mask 0 can only be selected when the system consists of a
single IE/IB combination. In Logic Mask 0, commands will be
accepted only from local (hardware) I/O.
In Logic Mask 0, the two inputs on the IB unit will not be generic
inputs as they are in all other masks. When operating in Mask 0 the
IB input 1 is the close command, and the IB input 2 is the Open
command for a mechanically latched contactor. Alternatively IB
input 2 may be used as a “JOG” input for an electrically held
contactor.
2 – Logical Mask 1 (Mask Network)
Logic Mask 1 may only be selected when the system consists of a
single IE/IB combination. In Logic Mask 1, commands will be
accepted only from remote (network) I/O.
3 – Logical Mask 2 (Mask DeviceLogix)
Logical Mask 2 enables commands to be received from DeviceLogix
using either network or local sources. In this logic mask the inputs
must be prioritized manually within the DeviceLogix control logic.
This logic mask will be used for Multi-Contactor (MC) customized
scenarios and will use standard logic blocks. For MC control
(standard applications), the local I/O (Close, Open/Jog) will default
to values as shown in Chapter 6.
4 – Logical Mask 3 (Mask HIM/PC)
Logical Mask 3 is a direct control option which is only to be enabled
for testing/troubleshooting purposes. When this mask is enabled the
IE unit and its attached IB slaves will accept either direct commands
(ex. close contactor #2) or higher level commands. The source of
these commands may be only from a DeviceNet node #63 which is
the standard node for a DeviceNet HIM.
The selection of the Logic Mask in DeviceNet is as follows:
Select Logic Mask =
‘0 – Local’
‘1 – Network’
‘2 – DeviceLogix’
‘3 – HIM’