Unication Messenger m90 Manual de usuario Pagina 402
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U90 Ladder Software Manual
394
must set the M90's RS232 parameter Flow Control to N
(none).
CANbus network problems
Problem Possible cause Recommended Action
Failed
communication
Baud rate
settings
All M90's in the network must be set to the same
CANbus baud rate. These may be edited in the M90
OPLC Advanced settings.
Termination
resistors
Check the M90 user guide for details.
CANbus power
supply
Check that the CANbus power supply is properly
connected, and that the voltage is in the permissible
range as described in the M90 User Guide.
Incorrect ID
number
You may not have assigned the correct unit ID
number in your operand addresses (between 1-63).
Check in the M90 OPLC settings.
PC cannot
communicate
with bridge
Incorrect ID
number
When you communicate with the M90 unit that you
are using as a bridge to the network, select Unit ID
number 0, or select Stand-alone project in the M90
OPLC settings.
PC cannot
communicate
with network
Communication
settings
If you are trying to communicate with an M90
network via a bridge, you must define your project
as a Network project--however, U90 Ladder cannot
automatically detect communication settings in a
Network project.
Make sure the current RS232 parameters in your
project are the same as the parameters that are
actually in the bridge.
Incorrect baud
rate
The bridge's RS232 port's baud rate cannot be set
below 9600.
M90 does not turn on
When the M90 is turned on, the display screen is lit.
Note that the screen can display messages only after you download HMI displays to the
M90. If you have not downloaded displays, check the screen by pressing the 'i' button for a
few seconds to enter Information Mode. If no text appears on the screen, the M90 may not
be receiving turned on.
If your M90 does not turn on
Check that the power supply's voltage is in the permissible range in accordance to
the technical specifications for your model.
Check the M90's connections. The +24VDC must be connected to the + V terminal,
and the ground connected to the 0V terminal.
Make sure that the 24VDC output power supply is connected to a functioning AC
power source.
Check your fuses or circuit breakers. These must allow power flow.
Make certain that the power is ON.
If you have checked all of the above, and the M90 does not turn on, contact your local
distributor.
- U90 Ladder Software Manual 1
- Table Of Contents 3
- Welcome to U90 Ladder 9
- Printing Documentation 10
- Interface Language 10
- Getting Started 11
- Uploading a Project 12
- Project Properties 13
- Ladder Editor 17
- Using the HMI Display Editor 17
- Comments Tool 18
- Power-up 19
- Hardware Configuration 21
- Configuring an Analog Input 38
- Analog I/O Ranges 43
- High-Speed Output: PWM 49
- Display 55
- Variable 75
- Changing Mode via Ladder 96
- Dialing a remote M90 99
- Communication Log 100
- M90 modem configuration 106
- Modems: General 109
- Communications 111
- Networks 112
- Creating SMS text messages 120
- Attaching variables 120
- Deleting variables 121
- Testing messages 121
- Variable Types 122
- ACK-Acknowledge message 123
- Problem SI 180 133
- Ladder Net 135
- Placing Contacts & Coils 136
- Placing a Function Block 138
- Ladder Logic 140
- Comments 140
- Copy and Paste Elements 142
- Copying multiple nets 143
- Moving Elements 145
- Replacing Ladder elements 146
- Restoring System Symbols 148
- Scrolling between nets 149
- Intersecting lines: Junction 153
- Ladder Nets with Feedbacks 153
- Elements 154
- Operands 161
- Functions 175
- Equal 177
- Greater or Equal 177
- Greater Than 178
- Less or Equal 178
- Less Than 179
- Not Equal 179
- Using the Compare function 180
- AND Example 183
- Add Examples 189
- Divide 190
- Division Examples 191
- Multiply 193
- Multiplication Examples 194
- Subtract 195
- Subtraction Examples 195
- Store Direct function 197
- Store Indirect function 199
- Clock Functions 200
- Direct Clock function 201
- Indirect Clock function 206
- Linearization 214
- Load Indirect 217
- Copy Vector 218
- Fill Vector 219
- Function Number 220
- (SI 140) 220
- Description 220
- 30 Fill MI Vector 220
- 31 Fill DB Vector 220
- Square Root 223
- Communication Utilities 226
- Interrupt 228
- Example 229
- Convert MB to MI, MI to MB 230
- Shift Register 233
- Counter 236
- Proportional Band 242
- Integral Action 243
- Derivative Action 244
- PID Function Parameters 245
- Utilities 249
- Verify Project 251
- M90 Downloader 252
- Battery Back-up values 253
- Find and Replace Elements 254
- Program Password Protection 255
- Examples 264
- General 269
- HSC Types & Functions 293
- To Create a Field 306
- To Attach a Variable 307
- Writing Values 356
- Reading Values 356
- Linearize values for Display 358
- Phone Book 373
- Modem commands 380
- Modem Connections 381
- GSM modems 385
- Modem Commands 393
- Troubleshooting 399
- CANbus network problems 402
- M90 does not turn on 402
- Power-up Modes 403
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