FM3332-B310-0010 | Thermocouple Fieldbus Modules with PROFIBUS interface

The FM33xx-B310 Fieldbus Modules allow 12 or 32 thermocouples to be connected to a module. The connecting circuitry for these multiple thermocouples is housed in a compact, splash-proof housing and has a PROFIBUS DP interface with a transmission rate of 12 Mbaud. Data are mainly exchanged cyclically, although acyclic services (“DP-V1”) are also available for parameterization and diagnosis.

The module’s circuit can operate thermocouple sensors using a 2-wire connection. Linearization over the full temperature range is realized with the aid of a microprocessor. The temperature range can be selected freely. The error LEDs indicate a broken wire. Compensation for the cold junction is made through a temperature measurement in the connecting plugs. This means that standard extension leads can be connected. The Fieldbus Modules have back-voltage protection circuitry to protect against external voltages applied to the thermocouple inputs. Voltages of up to 230 V AC are withstood without damage to the module. Those thermocouple inputs that are not affected remain functionally operative or are only affected for a short time.

The extended parameterization may be carried out either via the fieldbus or, using the KS2000 software tool, through the configuration interface. The parameters are stored in the module. The status of the Fieldbus Module is indicated via LEDs.

The different versions of the FM33xx-B310 Fieldbus Module differ in terms of the number of available thermocouple input channels (12 or 32 channels), the type of thermocouple that is implemented (type J or K), and the housing type (clip-on housing A or add-on housing B). The add-on housing (type B) features two locking latches and a continuous rubber seal to provide an IP65 connection to the socket element. In addition, housing type B features two cast brackets with holes for attaching the FM module to mounting plates (through-hole mounting).

The various implementation levels of the TC-Plug differ in the number of thermocouple input channels (12 channels or 32) and in the type of thermocouple implemented (J or K type).

Technical data (Version 1F.1 26.05.2000) FM3332

Dimensions: 120mm x 52mm x 129mm, ,length x wide x height

Connector Hood: Han24B (Harting)

Connector to Thermocouples: Han64D

Contacts: Hard gold plated

Coding system: With coding pins in the connector

Power supply and PROFIBUS connection: Round-Connector, DIN 45322 (series 423, 723 Binder) Shield of the Round-Connector is connected to the plug

Technical data (Version 1F.1 26.05.2000) FM3332

General technical data

Number of thermocouple input channels : 32

Sensor types: type J

Power supply: 24 VDC, -15% …+20% (20.4…28.8 V)

typical operating current: 100 mA (24 V)

max. operating current: 130 mA (24 V)

Power supply input protection

Reverse voltage min. -35V

Over voltage max. 35V

Potential separation

Thermocouples / PROFIBUS: 500 Vrms

Thermocouples / Supply Voltage: 500 Vrms

Supply Voltage / PROFIBUS: 100 Vrms

Ambient temperature

Operating temperature: 0…+55°C

Storage temperature: -25…+85°C

Type of protection plug: IP65 (PROFIBUS-Connector: IP67)

Vibration: EN 60068-2-6 10 Hz <= f <= 57 Hz: 0,075mm Amplitude 57 Hz <= f <= 150 Hz: 1,0 g

Shock: EN 60068-2-27/29 15 g, 11 ms

Vibration: conforms to EN 60068-2-6 / EN 60068-2-27, EN 60068-2-29

EMC immunity / EMC emission: conforms to EN 61000-6-2 / EN 61000-6-4

Approvals: CE, cULus* *) For the compliance of the cULus requirements use 4 Amp. fuse or class 2 power supply!

Refer to technical document: fm33xxen