Easy Controls MC138 User manual

MC138 LCD CONTROL BOARD
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MC138 LCD CONTROL BOARD
Features
 RS485 communication interface.
 8 on-board output drivers
 Built in Alarm System
 LCD display (128x64 or 192x64 dots)
 32K bytes EEPROM
 Keypad support (32 keys)
 Real Clock
 Support i-Control System
 Support Easy Control
 ProvideActiveX Control for your application software.
User's Manual
DEVICE CODE: 138

MC138 LCD CONTROL BOARD
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IMPORTANT
Although the information contained herein has been carefully verified,
NEWELL TECHNOLOGIES LIMITED assumes no responsibility for any
errors that may occur, for any damage to property or persons resulting
from improper use of this manual or from the related software. NEWELL
TECHNOLOGIES LIMITED products are not authorized for use as
components in medical, life support or military devices. No patent
licenses are implied. NEWELL TECHNOLOGIES LIMITED reserves the
right to change the features and specifications without notice at any
time.

MC138 LCD CONTROL BOARD
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Document Overview
Connectors ........................................................................................................................................................ 4
PCB Size ........................................................................................................................................................... 5
Technical Specifications..................................................................................................................................... 5
Power Supply (J1) ............................................................................................................................................. 6
Reset.................................................................................................................................................................. 6
Communication Interface (J8, JP2, JP3, JP4)................................................................................................... 6
Output Connection (J3)...................................................................................................................................... 7
Keypad (J2)........................................................................................................................................................ 7
LCD.................................................................................................................................................................... 7
Device ID ........................................................................................................................................................... 7
Easy Control Resource...................................................................................................................................... 7
Properties Settings.................................................................................................................................................8
System variable......................................................................................................................................................8
Data for remote reading.........................................................................................................................................8
System Startup Delay Jumper (JP1) ...................................................................................................................8
Device Code............................................................................................................................................................8
Develop Application Software............................................................................................................................ 8
Customer service............................................................................................................................................... 8

MC138 LCD CONTROL BOARD
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Connectors
Output Connector J3
System Status LED
Power Supply
LCD Contrast Adjustment VR1
System Startup Delay Jumper (JP1)
Key Inputs Connector J2
J5
J3
Buzzer
J7
X7 X6 X5 X4 X3 X2 X1 X0 Y3 Y2 Y1 Y0
+5V 8 7 6 54 3 2 1 GND V+
J2 J1
Special Port
Communication Status
LED
RS485Connector
NC
TR- - TR+
JP2
JP3 JP4
RS485 Settings:
JP2 pull-on resistance
JP4 pull-down resistance
JP3 termination resistance
VR1
JP1
Connected to 128x64 or
192x64 LCD Module
J6

MC138 LCD CONTROL BOARD
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PCB Size
Technical Specifications
Maximum boards
(In same control network)
256(addressed by device ID)
more than 256 (addressed by serial number)
Communication Interface RS485
Outputs 8 output drivers (can be used to drive relays, LEDs…)
LCD 128x64 dots / 192x64 dots
KeyPad 32(8x4) Keys
Buzzer 1
EEPROM 32Kbytes
Clock DS12C887
Power supply 8~24 VDC 6W
Consumption 3 W (max)
Dimensions 85mmx 84 mm
84mm
85mm
φ4.0mm
7.5mm

MC138 LCD CONTROL BOARD
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Power Supply (J1)
The device requests an DC power supply and connect to J1. Please refer to Connectors
DC: 8-24 V 6W
Reset
The device reset and set default output state at power-up, the state of the outputs does not change
even a system software or hardware reset (Watchdog Timer - WDT) may occur.
There is no any reset button on the device, Watchdog Timer (WDT) has been installed in the device.
Communication Interface (J8, JP2, JP3, JP4)
The device built-in a RS485 communication interface, the connector is J2. Please refer to Connectors
The communication baud rate can be software configured.
Communication Interface hardware settings
There are three jumpers used on the device for interface configuration, they are Jumpers J2, J4, J5 which are
used to insert the termination resistors which may be required for the RS485 interface, described in Table
below.
Note: Termination resistance must be enabled across the data lines at circuit end-points.
Jumper Short/Open Description
Short(Default) Enable pull-on resistanceJP2
Open Disable pull-on resistance
Short(Default) Enable pull-down resistanceJP4
Open Disable pull-down resistance
Short Enable terminal resistanceJP3
Open (Default) Disable terminal resistance

MC138 LCD CONTROL BOARD
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Output Connection (J3)
The device features 6 output drivers that can be used to drive relays, LEDs…, and featuring
continuous load current ratings to 250 mA for each of the drivers, but the full load current ratings of
all outputs can’t greater that 750mA.
Connectors: J3. Refer to Connectors.
Keypad (J2)
A keypad can be connected to J2, please refer to Connectors
J2: 32(8x4) keys
LCD
A LCD (128x64dots or 192x64 dots) is installed in the device, to know about the LCD operation, please refer
to Easy Control Manual
LCD Contrast Adjustment: VR1
Device ID
The default Device ID is 0, the ID can be changed by set system variable IDEX, Please refer to Easy Control
manual.
Easy Control Resource
Please install software [Easy Control]. To download the newest version, you can go to
http://www.easy-controls.com/download/
5V
Output 1~8
Relay, LED…

MC138 LCD CONTROL BOARD
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Properties Settings
Choose the menu [Device] - [Properties] to open the dialog window and press button [Help] to get the detail of
the settings.
System variable
Choose the menu [Device] - [Resource] to get the list of the variable in the system.
Data for remote reading
Choose the menu [Device] - [Resource] to get the detail.
System Startup Delay Jumper (JP1)
Short the jumper, system will delay five seconds to start, if you have trouble to upload new program to the
device after system start, you can upload new program to the device in this period.
Device Code
Device code is 138.
Develop Application Software
To develop your owner application software, you need to install Mcioctrl2.0 ActiveX Control, you can
download the ActiveX Control, user’s manual and sample code from website
http://www.easy-controls.com/download/.
Customer service
You can access Customer Service support through the following avenue.
Tel: [phone]
Fax: [phone]
Email: support@ easy-controls.com
http://www.easy-controls.com