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[DESIGN PRECAUTIONS]
!

DANGER
• When a communication error occurs on PROFIBUS-DP, the status of the faulty station is as
follows. Configure an interlock circuit in t he sequence program using the communication status
information (input X1) so that the system can operate safely.
Erroneous outputs and mis-operation could cause accidents.
(1) The input data from the master station remains unchanged from the data prior to the
communication error.
(2) When the master station becomes faulty, th e output status of the QJ71PB93D will be as in
the parameter settings of the master station.
(3) When any QJ71PB93D is down, the output state of other slave stations will be in
accordance with the parameter settings of the master station.
• Do not output (turn on) the "Use prohibited" signa l as the output signal to an intelligent function
module from the CPU module.
Writing data into the "system area" or outputting a signal for "Use prohibited" may cause system
malfunction in the programmable controller.

!

CAUTION
• When the PROFIBUS cable is laid, do not lay it close to main circuits or power lines
RS-422电缆 GT01-C300R4-25P
DC 输入模块 AJ35PTF-32D
保护膜 GT11-50PSCB
AC 输入/继电器输出模块 AJ35PTF-56AR
伺服马达 HF-KP053
网络模块 AJ71QLP21
CPU单元 Q2ASHCPU-S1
RS-422电缆 GT01-C100R4-8P
CPU单元 A2ACPU-S1
电源模块 A61PN
CPU单元 A2CCPUC24-PRF
伺服马达 HF-SP52B
保护膜 GT15-90PSCW
伺服马达 HF-KP43B
伺服电机电源用电缆 MR-PWS1CBL10M-A1-H
保护膜 GT16-90PSCW
CPU单元 A2ASCPU
模块 AJ35PTC-CNV
RS-232电缆 GT09-C30R2-9P
CPU单元 A3ACPU
计算机通信模块 A1SJ71UC24-PRF
RS422转换单元 GT15-RS2T4-25P
保护膜 GT16-80PSCB
GI-50/125光缆型模块 QJ72LP25G
CPU单元 A3ACPUP21-S3
CPU组件 A1SJHCPU
RS-485适配器 FX2NC-485ADP
CPU单元 A2NCPU
模块 AJ35PTC-CNV-SI
保护膜 GT11-50PSGW