Schneider Electric LXM32M manual Diagnostics and troubleshooting

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LXM32M	7 Diagnostics and troubleshooting

7 Diagnostics and troubleshooting

7

7.1Fieldbus communication error diagnostics

Connections for fieldbus mode If the product cannot be addressed via the fieldbus, first check the connections. The product manual contains the technical data of the device and information on network and device installation. Check the following:

•24Vdc power supply

•Power connections to the device

•Fieldbus cable and fieldbus wiring

You can also use the commissioning software for troubleshooting.

Fieldbus function test If the connections are correct, check the settings for the fieldbus addresses. After correct configuration of the transmission data, test fieldbus mode.

▶In addition to the master, activate a bus monitor that, as a passive device, displays messages.

▶Switch the supply voltage off and on.

▶Observe the network messages that are generated briefly after the supply voltage is switched on. A bus monitor can be used to record the elapsed time between messages and the relevant information in the messages.

Addressing, parameterization If it is impossible to connect to a device, check the following:

▶Addressing

Each network device must have a unique IP address.

0198441113843, V1.01, 01.2012

Modbus-TCP module

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Contents LXM32M Important information Table of contents Diagnostics and troubleshooting Accessories and spare parts LXM32M About this manual Further reading Fieldbus products on the network IntroductionLXM32M Before you begin safety information Qualification of personnelIntended use Hazard categories Basic information Standards and terminology Modbus TCP technology BasicsFunction principle Bus topologyClient / server model Network service SnmpStructure of a Modbus message Modbus TCP protocolField Length Description Mbap headerConnection management Modbus TCP communicationExcep Name Description Tion Code Modbus response to a Modbus requestAddress Value Reading and writing parameters4 I/O scanning to Drive Profile Lexium Byte Meaning Data type Parameter address 4.1 I/O scanning OutputBit Meaning 4.2 I/O scanning InputInputs Bit Signal Factory settingParameter channel Ctrl Subindex Index Modbus services Function Code Function Code 3 Read Multiple RegistersField Bytes Value Meaning Sub-function Code Diagnostics function Function Code 8 DiagnosticsFunction Code 16 Write Multiple Registers Function Code 23 ReadWrite Multiple Registers Object ID Object name Value Function Code 43 Encapsulated Interface TransportExample of Function Code ExamplesLXM32M Installation Installation of the moduleDescription Order no Pin Signal Meaning Electrical installationCommissioning the device CommissioningSwitching on the device Power stage supply is switched off First SetupManual assignment of the network address Bootp / boot BootpManual / MAnu Manual Dhcp / dhcP DhcpIP address Ethernet module, byte Assignment of the network address via Bootp Assignment of the network address via Dhcp Setting the protocol Setting the transmission rateSet the IP address of the gateway with the parameters Setting the gatewayMaster with Word Swap Setting I/O-Scanning Setting the master for I/O scanningActivating I/O scanning Setting the mapping for I/O scanning PLC Setting communication monitoring for I/O scanning Setting the web server0198441113843, V1.01 Operation Operating states Indication of the operating stateBit Name Meaning Bit Name Meaning Operating state Changing the operating stateIndicating and monitoring the operating mode Operating modesBit Name Description Bit Name Description Starting and changing an operating modeMODE+ACTION Overview of operating modesOperating mode Jog Operating mode Electronic Gear 24 h Operating mode Profile Torque23 h Operating mode Profile VelocityOperating mode Profile Position Operating mode Homing LXM32M6 Operation Operating mode Motion SequenceWeb server Extended settingsUser interface Main menu Submenu ContentFTP server Accessing the FTP serverFDR service Fast Device Replacement LXM32M Fieldbus communication error diagnostics Diagnostics and troubleshootingColor Status Meaning Status LEDsMeaning for EtherNet/IP Meaning for Modbus TCP ColorError indication Excep Name Description Tion Code LXM32M Cables Accessories and spare partsLXM32M Units and conversion tables GlossaryRotation TemperatureTorque Moment of inertiaTerms and Abbreviations LXM32M Index LXM32M