Communication Is Not Available With The Isdn Sub-Address; Periodic Transmission Is Not Performed Normally; Condition Agreement Transmission Is Not Performed Normally; Data Cannot Be Received Due To An Interrupt Program - Mitsubishi QJ71C24N User Manual

11 TROUBLESHOOTING

11.3.17 Communication is not available with the ISDN sub-address.

Symptom
• Sub-address is incorrect.
• Data cannot be
• Modem does not support ISDN sub-
communicated with ISDN
address.
sub-address
• Sub-address is incorrectly partitioned.

11.3.18 Periodic transmission is not performed normally.

Symptom
• Does not operate in the • The setting value of the constant cycle
cycle time designated in transmission is incorrect.
the constant cycle
• The cycle time is affected by some
transmission setting
causes.

11.3.19 Condition agreement transmission is not performed normally.

Symptom
• Does not operate in the • The setting value of the condition
cycle time designated in agreement transmission is incorrect.
condition agreement
• The cycle time is affected by some
transmission setting
causes.
11.3.20 Data cannot be received due to by an interrupt program.
Symptom
• Interrupt issuance was not designated.
• Receiving by instruction other than
BUFRCVS.
• "Parameter setting" - "PC system
• Cannot receive data with
setting" - or "Interrupt pointer setting"
the interrupt program
are not set on the programmable
controller CPU side, or the settings are
incorrect.
11 - 54
Cause
• Review the sub-address.
• Use modem that supports ISDN sub-
address.
• Review how to partition the sub-address
using the TA manual.
Cause
• Review the constant cycle transmission
setting.
• Remove the causes or designate the
cycle time anticipating the causes.
Cause
• Review the condition agreement
transmission setting.
• Remove the causes or designate the
cycle time anticipating the causes.
Cause
• Designate interrupt issuance.
• Use BUFRCVS instruction to receive
interrupt data.
• Review "Parameter setting" - "PS
system setting" - "Interrupt pointer
setting" on the programmable controller
CPU side
Corrective action MC
Corrective action MC
Corrective action MC
Corrective action MC
MELSEC-Q
Non
Bidirectional Pre-
procedure
protocol defined
protocol
Non
Bidirectional Pre-
procedure
protocol defined
protocol
Non
Bidirectional Pre-
procedure
protocol defined
protocol
Non
Bidirectional Pre-
procedure
protocol defined
protocol
11 - 54