Advantech MIC-3758DIO, Руководство пользователя

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19 Chapter 3
3.4 Isolated Digital Output Connections
MIC-3758DIO has 64 isolated digital output channels designated
P0_IDO00~7, P1_IDO00~7, P2_IDO00~7, P3_IDO00~7,
P4_IDO00~7, P5_IDO00~7, P6_IDO00~7, P7_IDO00~7.
3.4.1 Power-Up Configuration
Default configuration will be set after the power is on. The hardware reset
is to set all the isolated output channels to "off" status (The current of the
load can not be sink mode). So, you do not need to worry about damaging
external devices during system startup or reset. When the system is hot
reset, the status of isolated digital output channels can be selected by
jumper JP1. Table 3.2 shows the configuration of jumper JP1.
3.4.2 Isolated Outputs
Each of the isolated output channels is equipped with a Darlington tran-
sistor. Every 16 output channel shares common collectors and integral
suppression diodes for induction loads.
Figure 3-5 shows how to connect an external output load to the card’s iso-
lated outputs.
Table 3.2: JP1 Power on Configuration after Hot Reset
MIC-3758DIO JP1 Power on configuration after hot reset
Keep last status after reset
Load default configuration after reset (Default)
Note: If an external voltage (5 ~ 40 VDC ) is applied
to an isolated output channel while it is being
used as an output channel, the current will flow
from the external voltage source to the card.
Please be cautious as the current flowing
through each IDO pin can not exceed 90 mA.