NEC Mcu 5000a Multipoint Control Unit Equipment Manual
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Page 2 of 8 NECA 340-414-220 Revision 2.0
INT-001 MCU 5000A Multipoint Control Unit
How to verify system parameters
After setting system parameters, verification of their correctness or details can be
performed by entering RSPR commands from the console.
RSPR *** [return]
*** : system parameter address (hexadecimal values 0 to 3FF).
If omitted, all the parameters will be displayed.
If L is entered, the parameters for addresses 000 to 0FF will be displayed.
If H is entered, the parameters for addresses...](http://img.usermanuals.tech/thumb/54/84243/w64_nec-mcu-5000a-equipment-manual_d-189.png "Page 190
Page 2 of 8 NECA 340-414-220 Revision 2.0
INT-001 MCU 5000A Multipoint Control Unit
How to verify system parameters
After setting system parameters, verification of their correctness or details can be
performed by entering RSPR commands from the console.
RSPR *** [return]
*** : system parameter address (hexadecimal values 0 to 3FF).
If omitted, all the parameters will be displayed.
If L is entered, the parameters for addresses 000 to 0FF will be displayed.
If H is entered, the parameters for addresses...")
NECA 340-4 14- 22 0 Revisio n 2.0 Page 3 o f 8 MCU 5000A Multipoint Control U nit INT-001 4. SYSTEM
Page 4 o f 8 NECA 340 -41 4-2 20 Revisi on 2.0 INT-001 MCU 5000A Mult ipoint Con trol Unit T ab le 1: System Par ameters List ( 2 of 4)
NECA 340-4 14- 22 0 Revisio n 2.0 Page 5 o f 8 MCU 5000A Multipoint Control U nit INT-001 Tab le 1: System Par ameters List ( 3 of 4)
Page 6 o f 8 NECA 340 -41 4-2 20 Revisi on 2.0 INT-001 MCU 5000A Mult ipoint Con trol Unit T ab le 1: System Par ameters List ( 4 of 4)
NECA 340-414-220 Revision 2.0 Page 7 of 8 MCU 5000A Multipoint Control Unit INT-001 5. SYSTEM PARAMETER BACKUP ERROR PROCESSING5.01The system parameters are retained in the battery-powered memory even when the commercial electricity fails, but the system-parameter contents may be destroyed by causes like the following: (1) When power outage continued for many hours with the battery in the dead state. (2) The memory contents were caused to change due to replacement of a unit (chiefly an MCONT unit). If the system parameter contents are destroyed, MCU 5000A programs will be disabled to start and then the CPU status indication LEDs on the MCONT unit will give out the following indication. Refer to Fig. 1. Figure 1: CPU Status Indication by LEDs on MCONT Unit When the above-mentioned fault occurs, follow the steps by referring to Table 2. CPU LEDs M CONT Unit (7CH) Table 2: System Parameter Error Processing SYSTEM PARAMETER ERROR PROCESSING PROCEDURE REF. NO. Battery is run down with a drop in voltage TCP-019 (Maintenance Practice) The system parameter contents are destroyed and the CPU status indication LEDs on the M CONT unit are lighted.SPR-051 (System Parameter Reset)
Page 8 of 8 NECA 340-414-220 Revision 2.0 INT-001 MCU 5000A Multipoint Control Unit 6. FUNCTION OF DBG SWITCH ON MCONT UNIT6.01 The function of the DBG Switch on MCONT unit is shown below. Debug Initialization #7 : System parameter initialization switch When starting the programs, the system parameter contents are tested and, on detecting an error, one of the following actions must be performed. As a general rule, set the initialization switch to OFF. OFF = not initializing, and halting program start ON = automatically initializing on detecting a system parameter CRC error. #8 : Debug switch The switch is used in testing at the time of equipment shipment. As a general rule, be sure to set it to OFF. OFF = normal use (no debug) ON = debug command usable DEBUG Initialization OFF OFF OFF OFF OFF OFF #8 #7 #6 #5 #4 #3 #2 #1
NECA 340-414-220 Revision 2.0 Page 1 of 2 MCU 5000A Multipoint Control Unit SPR-001 CONSOLE INITIAL MESSAGE SETTING CONSOLE RELATED SUMMARY: Set an initial message indication on console screen to ON or OFF when MCU is powered on. STEP PROCEDURE 1 Enter the following command. SSPR__ n1 = x1 __n2 = x2 __ … ni = xi … ¿ ni: System parameter address00H x i: System parameter values See below: System parameter values on setting the initial message indication for each console. The factory shipment value is 01H . SYSTEM PARAMETERINDICATIONSYSTEM PARAMETERINDICATION SYSTEM PARAMETERCONSOLE 1 CONSOLE 2 CONSOLE 3 SYSTEM PARAMETERCONSOLE 1 CONSOLE 2 CONSOLE 3 00H OFF OFF OFF 04H OFF OFF ON 01H ON OFF OFF 05H ON OFF ON 02H OFF ON OFF 06H OFF ON ON 03H ON ON OFF 07H ON ON ON ON: Initial message is displayed. OFF: Initial message is not displayed. 2Verify that the normal response is displayed with “OK ”. If YES , go to Step 3 . If NO , go to Step 1 . 3 End of procedure.
Page 2 of 2 NECA 340-414-220 Revision 2.0 SPR-001 MCU 5000A Multipoint Control Unit This page is for your notes.
NECA 340-414-220 Revision 2.0 Page 1 of 2 MCU 5000A Multipoint Control Unit SPR-002 CONSOLE COMMAND GENERATION SETTING CONSOLE RELATED SUMMARY:Set an automatic execution of console command to ON or OFF when MCU is powered on. STEP PROCEDURE 1 Enter the following command. SSPR__ n1 = x1 __n2 = x2 __ … __ ni = xi … ¿ ni: System parameter address01H x i: System parameter values See below: System parameter values on setting the automatic execution. The factory shipment value is 00H . SYSTEM PARAMETER MEANING 00H Console command is automatically executed. 01H Console command is not automatically executed. 2Verify that the normal response is displayed with “OK ”. If YES , go to Step 3 . If NO , go to Step 1 . 3 End of procedure.
Page 2 of 2 NECA 340-414-220 Revision 2.0 SPR-002 MCU 5000A Multipoint Control Unit This page is for your notes.