CAPÍTULO 2: PROPUESTA DE LA GUÍA PARA LA PLANIFICACIÓN
2.3 Pasos de la planificación
2.3.3 Gestión de Riesgo
NOTE: For best modem communications, use a
“matched” pair (same brand) of modems.
Temporary remote monitoring of an engine with the ESM system is possible through the use of a modem.
A modem is a device that enables a computer to trans-mit data over telephone lines. Using ESP and a modem, you can “dial up” the ECU to monitor ESM system status and make programming changes remotely.
NOTE: High-speed cable and satellite modems will not work with the ESM system’s modem function.
IMPORTANT! This manual assumes that you are already familiar with modem devices, modem initializa-tion strings, other modem concepts, and HyperTermi-nal. If you need more information on these topics, refer to the user’s manual provided with the modem or with the modem manufacturer.
To remotely monitor an engine through a modem, the following supplies are required:
• “Modem to ECU” Connection
•• RS-232 serial cable (P/N 740269A) available from Waukesha Engine
•• External Modem (See “Setting Up Modem to ECU for Proper Connection”)
• “PC to Modem” Connection
•• External/internal modem
•• RS-232 cable (if external modem is used, con-nects modem to PC)
SETTING UP MODEM TO ECU FOR PROPER CONNECTION
NOTE: The following steps in this section do not need to be performed if using the modem in Waukesha Engine’s Remote Programming Modem Tool Kit (P/N 489943), which comes pre-programmed from the factory.
The modem connected to the ECU requires special setup programming so it will work with the ECU. The modem (1) must be set in “auto answer” mode, a modem feature that accepts a telephone call and establishes the connection, and (2) must be set at 38,400 baud. Auto answer mode and baud rate are programmed using HyperTerminal. HyperTerminal is a terminal software program that enables the modem to connect properly to the ECU. HyperTerminal is included as part of Microsoft® Windows® XP operating system.
Complete the following steps:
NOTE: Some modems may have dip switches (tiny toggle switches) that must be set to put the modem in auto answer mode. Refer to the user’s manual provided with the modem or contact the modem manufacturer. Set the dip switches as required and continue with Step 1.
1. Using a PC to external modem cable, temporarily connect a PC to the external modem that will be con-nected to the ECU.
2. Start HyperTerminal. From the Windows® taskbar, click Start
→
Programs→
Accessories→
Hyper-Terminal.NOTE: HyperTerminal is a terminal program included with Microsoft® Windows® XP operating system. If HyperTerminal is not installed, install the program using the Add/Remove Programs icon in the Control Panel. You may need your original Microsoft® Windows® CD-ROM for installation.
3. Give the HyperTerminal session a name.
4. Select an icon.
5. Click “OK.”
6. Click the selection arrow on the “Connect using”
drop-down menu and select the COM port your modem is connected to (not the modem name).
7. When you select the COM port, the other fields on the dialog box are deactivated (grayed). Click “OK.”
ESP PROGRAMMING
8. In the next dialog box, set the baud rate between the PC and the modem to 38,400 baud. Click “OK.”
NOTE: To avoid resetting the baud rate, the modem being set up must be a “dedicated” modem and used only with the ECU. If the modem is used with another device, the baud rate setting may be overwritten.
9. The HyperTerminal window opens and you are able to control your modem with commands. Type “AT”
and press [Enter]. The modem should reply with “OK.”
NOTE: If no “AT” or “OK” appears, there is a basic communication problem between the PC and the modem. Most likely the COM port selected is incorrect. Check selected COM port and try again.
10. Turn auto answer mode on by typing “ATS0=1”
(that is ATSzero=1, not the letter O) and press [Enter].
11. Save the change to NVRAM by typing “AT&W0”
(that is AT&Wzero, not the letter O) and press [Enter].
12. Turn the modem off and then on again.
13. Type “ATI4” (that is AT, capital letter i, 4).
14. The modem will respond with multiple lines that look similar to:
Current Settings...
B0 E1 L4 M1 N5 Q0 V1 X5
&B1 &C1 &D2 &G0 &H3 &J0 &K4 &L0 &M0 &N0 &P0 &R1 &S0 &X &Y1
*B0 *C0 *D0 *E0 *F0 *G0 *I0 *L0 *M0 *P9 *Q2 *S0
S00=001 S01=000 S02=043 S03=01 S04=010 S05=008 S06=003 S07=060 S08=002 S09=006
S10=007 S11=070 S12=000 S13=000 S14=002
S15=002 S16=000 S17=018 S18=000 S19=000
S20=002 S21=178 S22=000 S23=105 S24=138
S25=000 S26=000 S27=156 S28=068 S29=000
S30=000 S31=017 S32=019 S33=255 S34=030
S35=032 S36=000 S37=000 S38=000 S39=032
S40=000 S41=000 S42=000 S43=008 S44=000
S45=100 S46=028 S47=064 S48=000 S49=134
S50=000 S51=000 S52=000 S53=000 S54=000
S55=000 S56=000 S57=000 S58=000 S59=000
OK
ESP PROGRAMMING
15. Although the lines in Step 14 may not be exactly what is shown on your PC, make sure that the param-eter, S00=001, is listed. Parameter S00=001 is the programming code to the modem that enables the auto answer mode.
16. Exit HyperTerminal.
17. Click “Yes” to disconnect.
18. Click “Yes” to save the HyperTerminal session.
19. Continue with “Connecting Modem To ECU And PC.”
STARTING ESP FOR MODEM ACCESS 1. Apply power to the ECU.
2. Turn on power to PC.
3. Start ESP for modem use by one of the following methods:
• Double-click the ESM ESP modem icon on your desktop.
• From the Windows® taskbar (lower-left corner of your desktop), click Start
→
All Programs→
Waukesha Engine Controls
→
Engine System Manager (ESM)→
ESP (Modem Access).4. On program startup, ESP will check for a modem.
Once ESP finds the modem on the PC, a dialog box appears asking to attempt a connection. Click “Yes.”
5. Enter the phone number to the engine modem you wish to connect in the “Modem Connection Wizard”
dialog box. Enter phone number without spaces or dashes.
6. The ESP modem wizard will attempt to “dial up”
the modem. Note the following:
• If connection is successful, ESP will run, displaying the six engine panels. Setup is complete. Monitor engine operation or program ESP as necessary.
• If connection is unsuccessful, click “Retry.” If con-nection is still unsuccessful, continue with Step 7.
7. Check the telephone number typed in the “Modem Connection Wizard” dialog box.
8. Retry connection. Click “Connect.”
9. ESP modem wizard will re-attempt to “dial up” the modem. Note the following:
• If connection is successful, ESP will run, displaying the six engine panels. Installation is complete. Mon-itor engine operation or program ESP as necessary.
• If connection is unsuccessful, click “Cancel.” Con-tinue with Step 10.
ESP PROGRAMMING
10. If your modem dials but does not connect with the answering modem, or if you have problems getting or staying connected, you might need to adjust the modem initialization string. Click the “Advanced Set-tings” check box on the “Modem Connection Wizard”
dialog box.
NOTE: Always use CAPITAL letters (upper case) for the modem initialization string in the Advanced Settings check box.
11. Enter the modem’s initialization string (command) in CAPITAL letters (upper case). Most connection problems are resolved with the proper modem initial-ization string. The initialinitial-ization string gives the modem a set of instructions for how to operate during a call.
Almost every modem brand and model has its own variation of “ATCommand Set” and “S-register” set-tings.
NOTE: Detailed discussion of modem initialization strings is beyond the scope of this manual. You can get an initialization string from the user’s manual provided with the modem, from the modem manufacturer, or from a variety of Internet web sites.
12. Click “Connect.”
13. The ESP modem wizard will attempt to “dial up”
the modem. Note the following:
• If connection is successful, ESP will run, displaying the six engine panels. Installation is complete. Mon-itor engine operation or program ESP as necessary.
• If connection is unsuccessful, click “Retry.”
14. If connection continues to be unsuccessful, refer to the user’s manual provided with the modem or contact the modem manufacturer.
CONNECTING MODEM TO ECU AND PC
An RS-232 serial cable (P/N 740269A), available from Waukesha Engine, is used to connect a modem to the ECU. This cable has a 25-pin RS-232 connection that plugs into the modem and an 8-pin Deutsch® connec-tor that plugs into the ECU.
Complete the following:
1. Obtain an RS-232 serial cable (P/N 740269A) from Waukesha Engine for modem use.
2. Connect the 25-pin end of the RS-232 serial cable to the external modem (see Figure 3.10-6). Connect to the “dedicated” modem you set up for use with the ECU following the steps in the section “Setting Up Modem to ECU for Proper Connection”.
3. Connect the 8-pin Deutsch® connector of the serial cable to the “Service Interface” connection on the side of the ECU.
4. Connect PC to modem (see Figure 3.10-6 for sam-ple setup).
5. Make sure all connections are secure.
ESP PROGRAMMING
Figure 3.10-6 Modem Connections From ECU to PC
kW AFR PROGRAMMING
NOTE: To program in kW, the units in ESP must be set to metric prior to performing the steps in this section. To program in BHP, the units in ESP must be set to U.S., see Changing Units – U.S. or Metric on page 3.10-20.