EVOC MEC-5071-M Series, Manual

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Debugging
MEC-5071-M SERIES · 25 ·
Terminal matching mode selection:
If COM1 ～ COM4 are under RS-485 mode, it is suggested that when the transmission
distance is more than 300M, terminal matching mode setup should be carried out and
120 Ω terminal resistor be connected. (note: the transmission distance is only a
recommended value. As for the specific length, please make adjustment according to
the signal quality in actual use.
JP4----COM1 terminal matching mode selection; JP8----COM2 terminal matching
mode selection.
JP12----COM3 terminal matching mode selection; JP16----COM4 terminal matching
mode selection.
Setup Function
1-2, 3-4 Short Terminal resistance is connected
JP4/JP8
JP12/JP16
1-2, 3-4 Open Terminal resistance is disconnected
（
Default
）
5.2.10 GPIO Port
Provides one 2×5Pin 8-channel GPIO
port
. Its definition is as follows:
Pin Signal Name Pin Signal Name
1 GPIO1 2 GPIO5
3 GPIO2 4 GPIO6
5 GPIO3 6 GPIO7
7 GPIO4 8 GPIO8
GPIO
(pitch: 2.0mm Wafer)
9 GND 10 VCC
5.2.11 Jumper Setting
1. JCC1: Clear/Keep CMOS Setting (pitch: 2.0mm)