Schneider Electric Altivar 212 manual Read indirect block, Function 3, quantity = 1, Status info

Page 34

Modbus services

Read indirect block (3)

Function 3, quantity = 1 ... 5

The Read indirect block function permits to read 1 to 5 parameters. These parameters can be chosen by parameters F875 ... F879 (refer to "Configuration of the indirect blocks", page 27)

Access to the parameter

This parameter is accessible in the [COMMUNICATION MENU] COM submenu of [PROGRAMMING MENU] Programming mode.

Description

Parameters	Modbus	Adjustment range		Default	Valid
	address			setting	after

[Block read data 1] (F875)	2165	0	[No select]: No selection
	16#875	1	[Status info]
		2	[Freq. out]: Output frequency
[Block read data 2] (F876)	2166	2	[Freq. out]: Output frequency
[Block read data 2] (F876)	2166	3	[Motor current]: Ouput current
	16#876	3	[Motor current]: Ouput current
	16#876	4	[Ouput volt]: Ouput voltage		Power
[Block read data 3] (F877)	2167	5	[Alarm info]: Alarm information	0	Power
	16#877	6	[PID feedback value]	0	cycle
	16#877	6	[PID feedback value]		cycle
		7	[Input term. mon]: Input terminal board monitor
[Block read data 4] (F878)	2168	7	[Input term. mon]: Input terminal board monitor
[Block read data 4] (F878)	2168	8	[Out term. mon]: Output terminal board monitor
	16#878	8	[Out term. mon]: Output terminal board monitor
	16#878	9	[VIA monitor]: VIA terminal board monitor
[Block read data 5] (F879)	2169	10 [VIB monitor]: VIB terminal board monitor
	16#879	11 [Mot speed mon.]: Ouput motor speed monitor

Request:

Slave no.	Function code	Starting address		Quantity of registers			CRC16
	03	Hi	Lo	Hi		Lo	Lo	Hi
		18 (fixed)	75 (fixed)	00		02 to 05

1 byte	1 byte	2 bytes			2 bytes		2 bytes

Response:

Slave no.	Function code	Byte count	First register value
	03		Hi		Lo

1 byte	1 byte	1 byte		2 bytes

-------

Last register value			CRC16
Hi		Lo	Lo	Hi

	2 bytes		2 bytes

Error response:

Slave no.	Function code	Exception code	CRC16
	83		Lo	Hi
1 byte	1 byte	1 byte	1 byte

Example: Read indirect block in an drive with slave address 1.

Configuration parameters:

[Block read data 1] (F875) = 1: [drive Status] (Fd01)

[Block read data 2] (F876) = 2: [Output frequency] (Fd00)

[Block read data 3] (F877) = 3: [Output current] (FE03)

[Block read data 4] (F878) = 4: [Output voltage] (FE05)

[Block read data 5] (F879) = 5: [Alarm code] (FC91)

•Read indirect block of 5 parameters:

Request:

01

03

18 75

00 05

92 B3

Response:

01

03

0A

64 04

17 70

00 00

26 FB

00 80

1E 29

34	S1A53844 01/2011

Image 34

Contents Altivar S1A53844 01/2011 Table of Contents Table of Contents Safety Information Important InformationAbout the Book At a GlanceHazard of Electric SHOCK, Explosion or ARC Flash S1A53844 01/2011 Introduction Introduction Whats in this Chapter? Hardware setupTopic Cross section Pin out of the Open Style Modbus connectorRJ45 Tightening torquePin Signal Connection via Open Style wiring systemPin out of the RJ45 Modbus connector Open Style ReferenceConnecting cables Connection via RJ45 wiring systemConnection accessories RJ45 ReferenceProtection Against Interference Description of terminals PTC resistor value F646GND Hardware setup Configuration Parameters Modbus Adjustment range Default Valid Address Configuration of the communication parametersAccess to the parameters AfterControl by the Modbus network Configuration of the control sourceParameters Modbus Setting CommunicationControl by the terminals, monitoring by the Modbus network Setting Default ValidParameters Parameters Modbus Setting Default Valid LI R selection F112 Parameters Modbus Setting Default Valid AddressCom channel choice F807 Communication Menu COM submenu LI R selectionFrequency source Parameters LocationRemote spd ref 2 F207 VIA VIAComplete control diagram Commands CMOdConfiguration of the indirect blocks ConfigurationConfiguration of the communication interruption Communication detected fault 16#851 Configure the drive behaviourParameter Modbus Setting Default Valid Address 2129Configuration Modbus services Slave Slave j Slave k RTU modePrinciple of the Modbus protocol Slave address Function code DataRead one word Modbus functions availableFunction 3, quantity = Function 3, quantity = 1 Read indirect blockStatus info Read indirect block of 2 parameters Write Single Register Write multiple registers Function 16 = 16#10, quantity =1Write indirect block Command word Frequency SetpointSpeed Setpoint Request 6C 7E Response Read Device Identification 43/14 Error response Exception codeModbus services Parameter list Referring to the Altivar 212 programming manual Auto ramp AUI Disabled ManualSetting of Max frequency FH GeneralSetpoints from serial communication Commands from serial communicationList of control parameters Outputs control from serial communicationFrequency and speed List of monitoring parametersStatus Current and torqueTrip and alarm codes Power and energyMaintenance ValuesCommand word FA00 CommandsBit Specifications Remarks Examples Command word 2 FA20Energy reset bit Over-current stall level change bitFrequency setpoint FA01 SetpointsSpeed setpoint FA13 Status Status word FE0I Fd01Status word 2 FE42 Fd42 Command mode status FE45Setpoint mode status FE46 Status word 3 FE49 Fd49Alarm code FC91 Trip and alarm codesAlarm of run time FE79 Code Value Description Hexadecimal number Decimal number Digital outputs status Fd07, FE07 Monitoring and control of I/O from communicationDigital inputs status Fd06, FE06 Bit Terminal name Function parameter titleDamper opening command Digital outputs command FA50Analog outputs command FA51 Analog inputs values FE35, FE36F580 = 3 Identification Model Voltage Power Rating Code FB05 Class FB72bit8Drive model code F805 ATV212WU15N4C S1A53844 01/2011 Appendix Schematic diagram Modbus 2-wire standard schematicRS485 standard Migration For example Migration ATV21 ATV212Commissioning ATV212Modbus manualENS1A5384401 S1A53844 01/2011