Rockwell Automation 1769-OF4 Compact Analog Output Module - Manual (Page 35)

Publication 1769-UM020A-EN-P - December 2009 35
Module Data, Status, and Channel Configuration Chapter 3
Enable/Disable Channel (EC)
This configuration lets each channel be enabled individually. When a
channel is not enabled (EC = 0), the output channel is set to 0V or
0 mA.
Program Mode (PM)
This configuration selection provides individual Program mode
selection for the output channels. When this selection is disabled
(PM = 0), the module holds the last state. This means that the output
remains at the last converted value prior to the condition that caused
the control system to enter Program mode.
If this selection is enabled (PM = 1), and the system enters the
Program mode, the module converts the user-specified value from the
channel’s Program Value word to the appropriate analog output for
the range selected.
Program Value
Use each output channel’s program value word to set the analog
values for the outputs to assume when the system enters the Program
mode. Valid values are dependent upon the type/range and data
format selected for each output channel or the user-defined output
clamp values. If the value you enter is outside the full range for the
output type/range and data format selected, or outside the limits set
by the channel’s low and high clamp values, the module generates a
configuration error. The default value is 0.
IMPORTANT
Hold last state is the default condition for the module during a
control system Run-to-Program mode change.
TIP
N
Not all controllers support alternate output states and this
function. Refer to your controller’s user manual for details.
TIP
N
Not all controllers support alternate output states and this
function. Refer to your controller’s user manual for details.