!
59
1-2-3 Preparation for Operation
This section describes the procedures required to begin Programming Console
operation.
Caution
Always confirm that the Programming Console is in PROGRAM mode when
turning on the PLC with a Programming Console connected unless another
mode is desired for a specific purpose. If the Programming Console is in RUN
mode when PLC power is turned on, any program in Program Memory will be
executed, possibly causing a PLC-controlled system to begin operation.
The following sequence of operations must be performed before beginning ini-
tial program input.
1, 2, 3...
1. Insert the mode key into the Programming Console.
2. Set the mode switch to PROGRAM mode. (The mode key cannot be re-
moved while set to PROGRAM mode.)
3. Turn on PLC power.
4. Confirm that the CPU Unit’s POWER LED is lit and the following display ap-
pears on the Programming Console screen. (If the PLC mode is not dis-
played, turn off and restart the power supply. If the ALM/ERR LED is lit or
flashing or an error message is displayed, clear the error that has occurred.)
<PROGRAM>
PASSWORD!
5. Enter the password. See
1-2-4 Entering the Password
for details.
6. Clear memory. Skip this step if the program does not need to be cleared.
See
1-3-2 Clearing Memory
for details.
1-2-4 Entering the Password
To gain access to the PLC’s programming functions, you must first enter the
password. The password prevents unauthorized access to the program.
The PLC prompts you for a password when PLC power is turned on or, if PLC
power is already on, after the Programming Console has been connected to the
PLC. To gain access to the system when the “Password!” message appears,
press CLR and then MONTR. Then press CLR to clear the display.
If the Programming Console is connected to the PLC when PLC power is already
on, the first display below will indicate the mode the PLC was in before the Pro-
gramming Console was connected.
Ensure that the PLC is in PROGRAM
mode before you enter the password.
When the password is entered, the
PLC will shift to the mode set on the mode switch, causing PLC operation to be-
gin if the mode is set to RUN or MONITOR. The mode can be changed to RUN or
MONITOR with the mode switch after entering the password.
Indicates the mode set by the mode selector switch.
<PROGRAM>
PASSWORD!
<PROGRAM> BZ
Using a Programming Console
Section 1-2
Summary of Contents for CPM1A-20CAR-A
Page 3: ...ii...
Page 5: ...iv...
Page 9: ...iv...
Page 29: ...14 System Configuration Section 1 2...
Page 43: ...29 Unit Components Section 2 2...
Page 65: ...51 Wiring and Connections Section 3 4...
Page 123: ...Appendix B Dimensions 2 CPM1 CIF01 90 81 21 30 205 50 56 CPM1 CIF11 90 81 21 30 205 50 61...
Page 124: ...Appendix B Dimensions 3 Dimensions with Peripheral Devices Attached Approx 90 Approx 125...
Page 125: ...Appendix B Dimensions 4...
