Fieldbus Modules
FM33xx-B310
 
FM3312, FM3332 Thermocouple Fieldbus Modules with PROFIBUS interface

FM3312, FM3332 | Thermocouple Fieldbus Modules with PROFIBUS interface

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-B310 FM3332-B310
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 type J, K, mV measurement
Measuring 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 V, between the channels: no, control voltage/fieldbus: 100 V (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
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
Approvals CE, UL
Ordering information FM33xx-B310
FM3312-B310-0000 Fieldbus Module, thermocouple, 12-channel, type K, PROFIBUS interface, housing type A
FM3312-B310-0010 Fieldbus Module, thermocouple, 12-channel, type J, PROFIBUS interface, housing type A
FM3312-B310-1000 Fieldbus Module, thermocouple, 12-channel, type K, PROFIBUS interface, housing type B
FM3312-B310-1010 Fieldbus Module, thermocouple, 12-channel, type J, PROFIBUS interface, housing type B
FM3332-B310-0000 Fieldbus Module, thermocouple, 32-channel, type K, PROFIBUS interface, housing type A
FM3332-B310-0010 Fieldbus Module, thermocouple, 32-channel, type J, PROFIBUS interface, housing type A
FM3332-B310-1000 Fieldbus Module, thermocouple, 32-channel, type K, PROFIBUS interface, housing type B
FM3332-B310-1010 Fieldbus Module, thermocouple, 32-channel, type J, PROFIBUS interface, housing type B
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
System  
PROFIBUS For further PROFIBUS products please see the system overview.