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WAGO-I/O-SYSTEM 750
750-316/300-000 Fieldbus Coupler MODBUS RTU
4.4.3.1 Manual Configuration
Device Description 49
Activate the compatibility mode when replacing the fieldbus coupler!
If a 750-315 or 750-316 fieldbus coupler is replaced with a 750-315/300-000 or
750-316/300-000 fieldbus coupler in a system during ongoing operation, the compatibility mode must be activated when word-by-word access to data is to be provided to binary I/O modules.
Apply parameters set in non-volatile memory!
Parameters set in configuration mode are only applied in non-volatile memory when you exit configuration mode. If you do not exit configuration mode correctly, the settings are discarded!
Exit configuration mode correctly after creating the parameters to apply them!
Discard parameters set incorrectly by users!
You can discard incorrect parameters set during configuration before they are applied in the non-volatile memory.
Proceed as described below to discard parameters:
1. Turn the power supply off.
2. Set the correct station address at the rotary encoder switches if necessary.
3. Turn the power supply on again.
The procedures for manual configuration are described in this section.
1. Switch off the power to the device.
2. Set the value ‘F’ (‘FF’ = station address 255) at both rotary encoder switches.
3. Set the operating mode selector switch to the center position ‘STOP’.
4. Turn the power supply on again.
The device is in configuration mode.
The ON LED is off.
5. Wait until the RxD LED lights up green.
Note: While adjusting the rotary encoder switches, the TxD LED and CRC
LED remain off!
6. Set the parameter to be changed at rotary encoder switch ‘x1’.
Manual
Version 1.0.0
50 Device Description WAGO-I/O-SYSTEM 750
750-316/300-000 Fieldbus Coupler MODBUS RTU
7. Set a required value at rotary encoder switch ‘x10’.
8. Set the selector switch to the top position ‘RUN’.
9. Wait until the TxD LED (green) and CRC LED (red) light up.
10. Set the selector switch to the center position.
11. Wait until either the TxD LED or the CRC LED goes out.
TxD LED remains lit:
The set combination for the rotary encoder switch is valid.
The setting has been applied.
CRC LED remains lit:
The set combination for the rotary encoder switch is invalid.
The setting has been rejected.
12. Set any further parameters as required using the rotary encoder switch.
Starting at Step 6, repeat the steps described for this above.
To end the configuration mode and apply the settings you must set station address
‘0’ as follows:
1. Set the value ‚0‘ at both rotary encoder switches.
2. Set the selector switch to the top position ‘RUN’.
3. Wait until the TxD LED (green) and CRC LED (red) light up.
4. Set the operating mode selector switch to the center position ‘STOP’.
The settings are applied.
I/O LED flashes red.
The I/O LED and ON LED light up green.
The fieldbus coupler is now in Configuration/Programming mode (station address ‚0‘).
If required, another station address can be set:
1. Switch off the power to the device.
2. Set a station address via the rotary encoder switches.
3. Turn the power supply on again.
The fieldbus coupler accepts the set station address.
Manual
Version 1.0.0
WAGO-I/O-SYSTEM 750
750-316/300-000 Fieldbus Coupler MODBUS RTU
Device Description 51
Table 21: Manual Configuration
Switch setting "x1" Switch setting "x10" Result
1 Baud Rate Index 0
1
150 baud
300 baud
2
3
4
5
6
7
8
9
600 baud
1200 baud
2400 baud
4800 baud
9600 baud
*)
19200 baud
38400 baud
2 Byte Frame Index
A-
0
1
2
57600 baud
115200 baud
8 Data bits => 1 Stop bit "no parity"
*)
7 Data bits => 2 Stop bits "no parity"
1 Stop bit "even parity"
1 Stop bit "odd parity"
3
4
DataLength
EOF Time Index
3
0
1
0
8 Data bits => 2 Stop bits "no parity"
7 Data bits => 3 Stop bits "no parity"
8 Data bits
*)
7 Data bits
‚Frametime‘
*)
5 Modbus Mode
6 Error Check
7 Disable Watchdog
5
6
7
0
1
2
3
4
1
0
1
0
1
8 Compatibility mode 0
1
100 ms
200 ms
500 ms
1000 ms
1 ms
10 ms
50 ms
ASCII
RTU
*) disabled enabled
*)
Watchdog enabled
*)
Watchdog disabled
Non-compliant response
*)
Compatibility regarding word access to bit values
*)
Factory setting
The settings described in the Section „Manual Configuration“ can also be made using the “WAGO ETHERNET Settings” tool.
Set station address “0” when using “WAGO ETHERNET Settings”!
The configuration interface of the device must be activated for this procedure!
Set station address "0" to activate the configuration interface.
Manual
Version 1.0.0
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