L-Card ADC Series, User Manual, Page: 13 / 69

2.2.1. Configuration of the DAC outputs of the connector Analog
(DAC1/+15V/AGND/NC and DAC2/-15V/DGND/NC)
If your modification E-502 (
fig. 1-1
) has DAC, then "by default" the DAC within E-502 should
be connected to contacts 18 and 19 of the connector Analog (
fig. 4-3, p. 32
).
If necessary, you can independently change the configuration of these outputs by rearranging
the jumpers, according to
fig. 2-1
.
Analog connector is described in section
4.4.1
, p.
31
.
2.2.2. Configuration of the resolution of the active state of the digital outputs
DO1 ... DO16 on the Digital connector.
Activation of the digital outputs on the Digital connector (
fig. 4-4, p. 34
) is done in a
programmatic way "by default", and, as practice shows, users are satisfied in the overwhelming
majority of cases.
But, if necessary, digital outputs can be activated at power-up (without the possibility of
programmed transfer to the third state ) – in this case, you need to install one or two additional jumpers
according to
fig. 2-1
. This setting is made when the initial high-impedance state of the digital outputs
is not permissible for the connected load.
2.3. Functions of the status LEDs on the front panel.
2.3.1. LED1.
Usually LED1 on the front panel indicates a status of the module data collection:
LED1 state Description
Red light E-502 is connected and in the synchronous I/O standby mode.
Green light E-502 is in the synchronous I/O mode.
No lights Power is off.
In case of using more than one E-502 module, the user faces the task of identifying the module
with which the program is currently running. To solve this problem in a visual manner, you can use
the software function of controlling the red glow of LED1. Of course, the task of automatic module
identification can be solved with software, reading the module's available serial number.
Note: behavior of LED1 on E-502 is identical to the behavior of LED on the L-502 panel.