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Summary of Contents for MYERS EM Series
- Page 1 RS-232 Communications “Series E / IE” and “Series EM” Users Manual 114063D RS-232 User’s Manual...
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Page 2: Table Of Contents
TABLE OF CONTENTS Table of Contents ............................2 Introduction ..............................3 Connection..............................3 Terminal Settings ............................4 Commands ..............................4 Shell Command ............................4 Help screen ..............................5 Version ............................... 5 Alarm Setpoint ............................5 Meter Functions ............................6 Status ................................6 Alarms ................................ -
Page 3: Introduction
(such as Tera Term, PuTTy, xterm, etc.), or by any embedded device capable of RS-232 serial communication. We shall call this device the Client. The protocol used is proprietary, and specific to Myers “Series E”, “Series IE” and “Series EM” Emergency Lighting Central Inverters. -
Page 4: Terminal Settings
TERMINAL SETTINGS Baud Rate: 19,200 Data Bits: Parity: None Stop Bits: Flow Control: None Character Set: ANSI The “Series E”, “Series IE” and “Series EM” RS-232 protocol uses carriage returns (‘\r’, ANSI code 0x0D), but does not use line feeds (‘\n’, ANSI code 0x0A). If you are manually typing commands, some terminal emulator software will automatically feed the line back when you press enter (and a carriage return is sent) and when the inverter responds (with a response string followed by a carriage return). -
Page 5: Help Screen
Help screen You may type “help” at the command prompt for a listing of various commands available. CMD>help Display current firmware version. set point Display or modify set points. meter Display meter values. status Display present status. alarms Display alarms. dump Dump logs (alarms, tests, events). -
Page 6: Meter Functions
press the ‘tab’ key once more, and type ‘on’ or ‘off’ (to turn the alarm on or off respectively) and finally press ‘enter’. For example, to turn on the low voltage alarm when the input voltage goes below 105 VAC, type “lvac”... -
Page 7: Alarms
In this example, the inverter is running on utility power, so the Battery Power status is 0 (false) and Line Present is 1 (true). Battery Charging is 1 (true) because the battery will always be charging, even when its full. When the battery is full, the inverter uses ‘float-charging’ to keep the battery full –... -
Page 8: Alarms, Events, And Tests Dump
Alarms, Events, and Tests Dump The dump command displays all of the memory content for Events, Tests or Alarms. The dump command must be followed by a tab and then either “alarms”, “tests” or “events” as the second field. After pressing the ‘enter’ key, the inverter will display a “Press Enter when ready…” prompt. - Page 9 Here is an abbreviated example of a test log dump: CMD>dump tests Final settings will be displayed next. If you wish to save to a file, enable text capture now. Do not forget to stop capture after data is transferred. Press Enter when ready...
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Page 10: Date And Time
Date and Time The date and time can be viewed by typing the “dt” command. When dt is sent, the interface sends back the date and time information. Each parameter of the date and time are assigned a number. The dt command produces the following message: CMD>dt (1) day of week : 1..7 (2) month : 1..12... -
Page 11: Location Of The Rs232 Port For "E" & "Ie" 6-16.7K
LOCATION OF THE RS232 PORT FOR “E” & “IE” 6-16.7K PHONE LINE HOOKUP FOR E-MAIL MODEM OPTION. LOCATION OF THE RS232 PORT FOR “E” & “IE” 1.5 –5.0K PHONE LINE HOOKUP FOR E-MAIL MODEM OPTION. 114063D RS-232 User’s Manual... -
Page 12: Location Of The Rs232 Port For "Em" 1.0 - 2.8K
LOCATION OF THE RS232 PORT FOR “EM” 1.0 – 2.8K RS232 PORT BEHIND FRONT PANEL PHONE LINE HOOKUP FOR E-MAIL MODEM OPTION. 114063D RS-232 User’s Manual... - Page 13 114063D RS-232 User’s Manual...
- Page 14 114063D RS-232 User’s Manual...
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Page 15: The Zoom Modem (Optional)
THE ZOOM MODEM (OPTIONAL) Configuring the ZOOM Modem (optional) Connect the 9VDC Power Adapter Connect the PC serial port to the modem’s serial port On the PC, bring up a terminal communications program such as HyperTerminal. Configure your terminal emulator software to the following: 19,200 BPS 8 Data Bits No Parity...
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