Version 2.0.3 Preliminary Documentation – May be Subject to Change 34-36
Outputs
Analog Outputs
8 Analog outputs
User selectable (0-5V, 0-10V, +/-5V, +/-10V, 0-20 mA, 4-20 mA)
Each analog output can be configured for one of the following options, and the properties and behavior of
the output in each mode is described below in Table 2.0.
Table 2.0 Analog Outputs
0 to 5 Volts
The output is configured to drive a voltage output in the
range of 0V to 5V. If feedback messages are used to
send the output value to the bus, then the message will
be sent with a resolution of 1mV/bit, and a 0mV offset.
-5 to 5 Volts
The output is configured to drive a voltage output in the
range of –5V to 5V. If feedback messages are used to
send the output value to the bus, then the message will
be sent with a resolution of 1mV/bit, and a -5000mV
offset.
0 to 10 Volts
The output is configured to drive a voltage output in the
range of 0V to 10V. If feedback messages are used to
send the output value to the bus, then the message will
be sent with a resolution of 1mV/bit, and a 0mV offset.
-10 to 10 Volts
The output is configured to drive a voltage output in the
range of –10V to 10V. If feedback messages are used
to send the output value to the bus, then the message
will be sent with a resolution of 1mV/bit, and a -
10000mV offset.
0(4) to 20 Milliamps
The output is configured to source a current in the range
of 0mA to 20mA. If feedback messages are used to
send the output value to the bus, then the message will
be sent with a resolution of 1uA/bit, and a 0uA offset.
Output Accuracy
Voltage Output: +/- 0.4%
Current Output: +/- 0.4%
Output Resolution
15-bit PWM
Output Adjust Rate
1 mSec.
Output Response
For each output type, if the control signal is one of the inputs on the board, then there are up
to six output profiles that can be selected to determine how the output will react to a change
at the input.
Refer to Figures 1, 2 and 3 below.
Note 1. If the control input is set to a digital type, the output will jump to the maximum
setpoint when the input is ON and jump to the minimum setpoint when the input is OFF.
Note 2: For outputs that are controlled using a J1939 Command Message, only the “Single
Profile” responses will be used (single or dual slope).
Output Setpoints
There are six setpoints that will determine how an input controls the output’s behavior. There
are four setpoints that define an output type and response. There are five setpoints that
define an output’s behavior depending on the profile used.
Short Circuit Protection
Individual short circuit protection is provided.
Other Protection
Each output is protected against miswiring.
Accuracy 0.5%
Response Time
1 mSec.
Output Short Circuit Protection
Fully protected (all physical pins, all inputs, outputs and power)
