Digital Output Output Channel 8
Output Type Non-Isolated open-collector
Max load current 100mA per channel
Load voltage +5V to +30VDC
Digital Input Input Channel 8
Input Type Non-Isolated digital input
ON State Input voltage < 1V
OFF State Input voltage > 3.5V
LED Display 1 LED as Power/Communication indicator
8 LEDs as digital output indicators
8 LEDs as digital input indicators
Power Consumption Maximum : 0.5W


i-87055 pin assignment
Terminal Number Pin Name
1DI0
2DI1
3DI2
4DI3
5DI4
6DI5
7DI6
8DI7
9GND
10GND
11GND
12DO0
13DO1
14DO2
15DO3
16DO4
17DO5
18DO6
19DO7
20DO.PWR


i-87055 block diagram


Input Type ON State
LED ON
Readback as 1
OFF State
LED OFF
Readback as 0
Relay Contact
relay close i-87055 digital input
relay open i-87055 digital input
TTL/CMOS Logic
logic low i-87055 digital input
logic high i-87055 digital input
Open Collector
open collector on i-87055 digital input
open collector off i-87055 digital input

Output Type ON State
LED ON
Readback as 1
OFF State
LED OFF
Readback as 0
Drive Relay
relay on i-87055 open collector output
relay off i-87055 open collector output
Resistance Load
current on i-87055 open collector output
currnet off i-87055 open collector output


i-87055 dimention


Configuration Default Setting Description
Type 40 Digital Input/Output
Baudrate 0A 115200 bps
Format 00 CheckSum disable


Command Description
%AANNTTCCFF Set Module Configuration
$AA2 Read configuration
$AA4 Read synchronized digital input/output status
$AA5 Read reset status
$AA6 Read digital input/output status
$AAC Clar latched digital inputs
$AACN Clar digital input counter from specificed channel
$AAF Read firmware version
$AALS Read latched digital inputs
$AAM Read module name
#** Synchronized sampling
#AABBDD Digital output
#AAN Read digital input counter from specificed channel
@AA Read digital input/output status
@AA(Data) Set digital outputs
~AA0 Read module status
~AA1 Reset module status
~AA2 Read host watchdog timeout setting
~AA3ETT Set host watchdog timeout setting
~AA4S Read PowerOn Value / Safe Value
~AA5S Set PowerOn Value / Safe Value
~AAO(Name) Set module name


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