FM3312, FM3332 | Fieldbus Module
The FM33xx 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 parameterisation and diagnosis.
The module’s circuit can operate thermocouple sensors using a 2-wire connection. Linearisation over the full temperature range is realised 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 parameterisation 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 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 IP 65 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).
| Technical data | FM3312 | FM3332 |
|---|---|---|
| Fieldbus | PROFIBUS DP | |
| Data transfer rates | max. 12 Mbaud | |
| Configuration possibility | via KS2000 or the controller | |
| Fieldbus connection method | DIN 45322, 6-pin, screwed | |
| Thermocouple channels | 12 | 32 |
| Thermocouple connections | industrial plug-in connection (Han24E, Han64D), 2-wire connection | |
| Cable length | max. 10 m | |
| Sensor types | typ J, K, mV measurement | |
| Temperature range | type J: -10…+900 °C; type K: -100…+1,370 °C | |
| Resolution | 0.1 °C per digit | |
| Conversion time | approx. 250 ms | |
| Measuring error | < ±0.5 % (of the full scale value) | |
| Input filter | 5 variations, configurable | |
| Power supply | 24 V DC (-15 %/+20 %) | |
| Current consumption | typ. 90 mA/max. 120 mA | typ. 100 mA/max. 130 mA |
| Bit width in the process image | input: 4 x 16 bit data, optional: 4 x 8 bit control/status | |
| Electrical isolation | channels/control voltage: 500 Vrms, between the channels: no, control voltage/fieldbus: 100 Vrms (PROFIBUS) | |
| Housing type A | industrial plug-in connector, Han24B | |
| Housing type B | add-on housing AGG + locking bracket | |
| Housing pin insert | Han24E | Han64D |
| Contacts | hard gold plated | |
| Dimensions (L x W x H) | type A: 120 mm x 52 mm x 129 mm, type B: 150 mm x 52 mm x 129 mm | |
| Weight | type A: 950 g, type B: 1030 g | |
| Operating/storage temperature | 0…+55 °C/-25…+85 °C | |
| Vibration resistance | conforms to IEC 68, Part 2-6/IEC 68, Part 2-27 | |
| EMC immunity/emission | conforms to EN 61000-6-2/EN 61000-6-4 | |
| Protect. class/installation pos. | housing to IP 65 (PROFIBUS connector: IP 67)/variable | |
| Accessories | |
|---|---|
| ZS3100-0831 | angled PROFIBUS plug, DIN 45322, 6-pin |
| ZS3100-0841 | angled PROFIBUS socket, DIN 45322, 6-pin |
| ZS3100-1810 | straight PROFIBUS plug terminating resistor, 6-pin |
| ZB3300 | PROFIBUS cable 12 Mbaud 1 x 2 x 0.64 mm², 5-wires, drag chain suitable |
| KS2000 | configuration software for extended parameterisation |
| Ordering information | FM33xx |
|---|---|
| FM3312-B310-0000 | Fieldbus Module, thermocouple, 12-channel, type K, PROFIBUS interface |
| FM3312-B310-0010 | Fieldbus Module, thermocouple, 12-channel, type J, PROFIBUS interface |
| FM3312-B310-1000 | Fieldbus Module, thermocouple, 12-channel, type K, PROFIBUS interface |
| FM3312-B310-1010 | Fieldbus Module, thermocouple, 12-channel, type J, PROFIBUS interface |
| FM3332-B310-0000 | Fieldbus Module, thermocouple, 32-channel, type K, PROFIBUS interface |
| FM3332-B310-0010 | Fieldbus Module, thermocouple, 32-channel, type J, PROFIBUS interface |
| FM3332-B310-1000 | Fieldbus Module, thermocouple, 32-channel, type K, PROFIBUS interface |
| FM3332-B310-1010 | Fieldbus Module, thermocouple, 32-channel, type J, PROFIBUS interface |