Chapter 7 Ch7

7

Maintenance

Chapter

In this Chapter...

Project Backup ........................................................................................................... 7-2

Check Operating Environment .................................................................................. 7-2

Check Operating Voltage .......................................................................................... 7-2

Check Transmit and Receive Indicators .................................................................... 7-3

Check Physical Conditions ......................................................................................... 7-3

Run Tests under the System Setup Screens ............................................................. 7-4

Check Settings under the System Setup Screens ..................................................... 7-5

Cleaning the Display Screen ..................................................................................... 7-5

Check Project Functionality ....................................................................................... 7-6

Checks from the C-more Micro-Graphic Programming Software ............................ 7-6

Notes: ......................................................................................................................... 7-7

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Maintenance

Although the C-more® Micro-Graphic panels require very little maintenance, setting up a

routine maintenance schedule will insure the longevity of the product in your application.

The following are some suggestions of items to include in a preventive maintenance list or

schedule. Most of these items should be scheduled quarterly or bi-annually.

Project Backup

During a routine preventive maintenance check is a good time to make sure that there is an

up-to-date backup of the application project. Although the C-more Micro-Graphic panel with

its programming software has the ability to upload the complete project from a panel, insurance

is warranted just in case the worse case scenario happens and the entire panel is destroyed.

Check Operating Environment

Make sure the Micro-Graphic panel

is operating in the proper temperature

range: (0 to 50 °C (32 to 122 °F)).

Make sure the Micro-Graphic panel is

operating within the specified humidity range:

(5–95% RH, non-condensing).

Make sure the operating environment is free of corrosive gasses.

Check Operating Voltage

Check the input voltage that is powering the Micro-Graphic panel to make sure it is within

the appropriate range.

5 VDC: If the panel is being powered with 5 VDC from an AutomationDirect PLC’s

RJ12 serial communications port to Port 1 on the panel, the acceptable voltage

range to the panel is 4.75-5.25 VDC (1.05 W @ 5 VDC (210 mA)).

24 VDC: If the panel is being powered from the optional EA-MG-P1 DC Power

Adapter, or the EA-MG-SP1 Serial Port with DC Power Adapter, the

acceptable voltage range to the adapter is 10.8-26.4 VDC (100 mA @ 24

VDC).

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Check Transmit and Receive Indicators

During a routine maintenance check is a good time to take a quick look at the status indicators

on the back of the C-more Micro-Graphic panel, and the EA-MG-SP1 Serial Port w/ DC

Power Adapter, if being used. There should be activity on both the TxD and RxD LED

indicators when connected serially to a PLC or control device from either port.

Check Physical Conditions

Make sure that harmful chemicals are not being used around the C-more Micro-Graphic

panel. Look for any deterioration of the panel’s bezel and front display area. See Chapter 2:

Specifications for identification of the materials on the face of the panels and accessory bezels.

Check the mounting gasket to make sure it is sealing properly and has not deteriorated. Replace

the mounting gasket if there are any signs of deterioration, or if there is any evidence that

moisture/liquids have penetrated to the inside of the enclosure where the panel is mounted.

Information on replacement gaskets can be found in Chapter 9: Replacement Parts.

Check to make sure that none of the cooling vents around the inside section of the Micro-

Graphic panel are clogged with dust or debris. Also make sure that there is clearance around

the panel as shown in Chapter 4: Installation and Wiring.

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TxD

Indicator

RxD

Indicator

TxD

Indicator

RxD

Indicator

Port 2

Micro-Graphic Panel

Port 1 Status Indicators

EA-MG-SP1

Port 2 Status Indicators

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Run Tests under the System Setup Screens

Use the C-more Micro-Graphic panel’s System Setup Screens to test communication ports,

PLC connectivity, and the internal beeper. See Chapter 5: System Setup Screens for additional

details. Below is shown the Test Menu. Please note the Serial Port2 selection will only be seen

when the EA-MG-SP1 Serial Port with DC Power Adapter option is installed on the panel.

Serial Port 1 - Performs a test to verify the RJ12 serial communications port (Port 1) on the

panel is operating correctly. Requires a loop back connector inserted into the port to properly

run the test. A wiring diagram for the loop back connector is shown below.

Serial Port 2 - Performs a test to verify either the RS-232 or the RS485/422 serial

communications functionality from the 15-pin connector (Port 2) on the EA-MG-SP1 Serial

Port with DC Power Adapter is operating correctly. Requires a loop back connector inserted

into the port to properly run the test. A wiring diagram for either a RS-232 or RS-485/422

loop back connector is shown below.

PLC Enquiry Test - Tests the communications with the selected PLC protocol between the

panel and a connected PLC. Is used with both Port 1 and Port 2.

Buzzer Test - Use this option to test the internal audible beeper of the panel.

NOTE: The panel has one built-in RJ12 serial communications port (Port 1 - RS-232) and the option to add

one 15-pin serial communications port (Port 2 - RS-232/422/485) to the panel by installing the EA-MG-SP1

module. Only one of the ports can be used with a connected PLC. The programming software allows the

user to select either Comm. Port1 or Comm. Port2 under the Panel Manager dialog box. When using Port

2 to communicate with the connected PLC, Port 1 can still be used with the EA-MG-PGM-CBL Software

Programming Cable Assembly to transfer projects between the PC and panel.

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BAK -- UP DWN ENT

TEST MENU

3.

PLC Enquiry Test

4.

Buzzer Test

2.

Serial Port2 - Loop Back Test

F1 F2 F3 F4 F5

1.

Serial Port1 - Loop Back Test

3

4

RXD

TXD

RJ12 Loop-back Connector

Wiring Diagram

1 2 3 4 5 6

RJ12 6-pin

Phone Plug

(6P6C)

Jumper

Pin 3 to 4

1

15

15-pin D-sub

(male)

2

3

TXD

RXD

7

8

CTS

RTS

RS-232 Loop-back Connector

Wiring Diagram

1

15

15-pin D-sub

(male)

7

8

CTS

RTS

9

11

RXD+

TXD+

10

12

RXD–

TXD–

RS-422/485 Loop-back Connector

Wiring Diagram

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Check Settings under the System Setup Screens

Use the C-more Micro-Graphic panel’s System Setup Screens to check the various settings

such as the LCD contrast, background color, beep, etc. See Chapter 5: System Setup Screens

for additional details. Below is shown the Setting Menu. Note the use of the up/down keys to

access the last item.

LCD Contrast - Used to adjust the LCD display’s contrast. The default is a value of 3, and the

range is 1 to 5, with 5 being the highest contrast.

Backlight - There are five different available backlight colors. Use this option to select the

default screen color and also cycle through the colors for checking.

Cleaning the Display Screen

The display screen should be cleaned periodically by wiping it with a lint free damp cloth using

a mild soap solution. Dry the surface when finished with a lint free cloth. Do not clean with

ammonia based products. The ABS material the bezel is made from is reactive with ammonia.

The longevity of the display screen on the touch screen models can be increased by the use of a

EA-MG-COV-CL clear screen overlay. See Chapter 3: Accessories for additional information

on the screen overlay.

To prevent damage to the display screen on the touch screen models, avoid touching the screen

with sharp objects, striking the screen with a hard object, using abrasives near the screen, or

using excessive force when pressing the touch screen.

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SETTING

2.

Backlight

3.

Beep

4.

Calibration

>

1.

LCD Contrast>

F1 F2 F3 F4 F5

5.

Clear User Memory

NXT UP DWN ENT

SETTING

6.

Reset Factory Default

F1 F2 F3 F4 F5

BAK BAK

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Check Project Functionality

During a routine maintenance check is a good time to verify the functionality of your

application, making sure that various areas on different screens do what they were designed to

do. An outline or specification for the application is a useful tool for testing the various aspects

of your application. As a starting point, you may want to run through all the screens to make

sure they are accessible.

If there are any trouble-shooting procedures built into the Micro-Graphic panel application,

now is a good time to also check these aids.

Checks from the C-more Micro-Graphic Programming Software

If you have a PC available with the C-more Micro-Graphic Programming Software,

EA-MG-PGMSW, installed, and the PC is connected to the panel, you can check the status of

the panel by using the Panel Information window.

The Panel Information window shown below will indicate the panel type, any options such as

a keypad bezel or DC power adapter that have been installed, the total memory, memory used,

free memory, firmware version, mask ROM version, and the PLC protocol the panel has been

setup for using on its serial communication port. The programming software can also be used

to update the panel’s firmware to the latest version.

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Notes:

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Chapter 7 Ch7

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