15.10 Cannot Communicate With The As-Interface Master Module - Mitsubishi AL2-10MR Manual Del Usuario

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2 Simple Application Controllers

15.10 Cannot Communicate with the AS-interface Master Module

Check the following items.
Notes on use
• Use the expansion board or the connector cover while power is supplied to the
controller.
Improper equipment installation can cause damage to the controller or an electric shock.
1) Check whether AS-interface power supply is adequate.
2) Check that the control bit N1 is Off. Use one of the two methods below to change its status
if required.
a) When not using it in the program
Force the status to Off, refer to
b) When using it by the program
Change the program or manipulate the inputs so that the control bit N1 turns Off.
3) Check that the slave address is correct.
Set the slave address from the AS-interface master module.
Refer to the manual of section 9.4.1 and the AS-interface master module for the address
setting method.
a) Another slave's address and the AL2-ASI-BD's address overlap.
Set the address so that there is no conflict.
b) Slave address is 0.
Set a valid slave address from the AS-interface master module.
4) AL2-ASI-BD is not an active slave on the master module side.
Check the setting of the master module.
Refer to the manual of the AS-interface master module for the confirmation method.
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Programing Manual for the Force On/Off procedure
Diagnostics 15
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2 series
ENG
ENG-97

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