s::can con::cube D-330 - 7.4 Data Transfer via Modbus Interface

7.4 Data Transfer via Modbus Interface
The con::cube is equipped with a Modbus interface which support the standardized Modbus protocol via RTU or TCP / IP. This
interface enables the integration of the con::cube into other networks and supports the following features:
 Readingofdevicedescription(seetable-MappingofDevicespecicInputRegisterorDevicespecicHoldingRegister)
 Readingof parameter results(seetable -Mappingof Parameter specicInputRegister orParameterspecic Holding
Register)
Reading of parameter status information (see table - Mapping of Parameter Status)
Reading of system status information (see table - Mapping of System Status)
Access to this information is possible by reading input registers and / or by reading holding registers. The type and the location
of the registers is described in the following sections.
Thecon::cubeModbusisspeciedaccordingtheModbus-IDAApplicationProtocolV1.1aandsupportsthefollowingfunction
codes:
Function Function code Description (used for)
Read Input Register 0x04 Parameter readings
Parameter status
Device status
Read Holding Register 0x03 Deviceandparametercongurationsettings,
Mirrored input registers (for support of limited Modbus
master devices)
M a p p i n g o f D e v i c e s p e c i f i c I n p u t R e g i s t e r
Input register,
16bit, RO
Tag name Address Type Length R/W Description Address
device
description
uiVersion 0x0000 unit16 1 R Version of Modbus mapping
protocol. For all changes in public
registers: 0xAABB
AA ... Major version
BB ... Minor version (compatible)
0
eVendor 0x0001 enum 1 R Vendor code 1
eModel 0x0002 enum 1 R Device model 2
abModel 0x0003 char[20] 10 R Description of device model,
lledwithspaces
3
abSerialNumber 0x000D char[8] 4 R Serial number,
lledwithspaces
13
abSWRelease 0x0013 char[4] 2 R Software release: 0xAABB
AA ... Major version
BB ... Minor version
19
device status
public
tSampleTime 0x0068 timestamp 6 R Time when the parameter results
have been updated. Timestamp of
logged status and results
104
bmDeviceStatus 0x0078 bitmask 1 R Device status 120
con::cube D-330, 01-2020 Release
www.s-can.at
Copyright © s::can Messtechnik GmbH
25 / 42