BARTEC MODEX PROFIBUS 07-7331-2305 Series Interface Module

BARTEC MODEX PROFIBUS 07-7331-2305 Series Interface Module

Module core information and functional differences

Both modules are PROFIBUS-DP interface devices with "4-channel digital output+8-channel digital input". The core difference lies in the explosion-proof level of the output terminal. The specific comparison is as follows:

Comparison item model 07-7331-2305/000 model 07-7331-2305/1000

Output explosion-proof level Ex e (increased safety type) Ex i (intrinsic safety type)

Output voltage U2-0.2V (approximately 23.8V when U2 is 24V) DC 22V (when U2 ≥ 24V)

Single channel maximum output current 500mA-

Single channel internal resistance -301 Ω

Module loss power maximum 3.5W maximum 4.5W

Control object: 4-channel Ex e valve, 4-channel Ex i valve

Common core functions:

Input function: 8-channel Ex i intrinsic safety input, supporting NAMUR limit switches, mechanical contacts (compliant with EN/IEC 60947-5-6 standard), with wire breakage/short circuit detection;

Display function: Real time display of power supply (ON light), bus communication (BF light), status fault (SF light), output power supply (U2 light), and activation/fault status of each channel through LED;

Safety design: Short circuit protection (automatically cuts off output in case of short circuit), reverse polarity protection, supports cutting off actuator power through U2 terminal external emergency stop switch;

Communication and diagnosis: Connected to the control system through PROFIBUS-DP, it can transmit user data and diagnostic data (output disconnection/short circuit status), supporting SYNC (output status freeze) and FREEZE (input status freeze) functions.

Explosion proof certification and compliance

The module is designed for explosive hazardous environments and has passed multiple international certifications to meet compliance requirements in different regions

Certification System Certification Number/Directive Explosion proof Identification/Key Requirements

ATEX PTB 97 ATEX 1066 U, T Ü V 98 ATEX 1355 X II 2 (1) G Ex db e [ia Ga] IIC Gb; I M2 Ex db e [ia Ma] I Mb

IECEx PTB 11.0082U、TUN 11.0024X Ex db e [ia Ga] IIC Gb； Ex db e [ia Ma] I Mb

Regional Compliance  CSA（2011-2484303U）、INMETRO（UL-BR 13.0397U）、EAC（RU C-DE.BH02.B.00005） CSA  Identification: A/Ex d e [ia] IIC Gb

EU directives ATEX 2014/34/EU, RoHS 2011/65/EU, EMC 2014/30/EU comply with EN 60079 series explosion-proof standards and EN 60529 protection standards

Special explosion-proof requirements:

The module is marked with a "U" symbol and needs to be installed in an enclosure that complies with EN/IEC 60079-0 standard and has a protection level of not less than IP54;

If the shell is of Ex e increased safety type, it must meet the electrical clearance and creepage distance specified in Table 1+2 of IEC/EN 60079-7.

Key technical parameters

1. Electrical parameters (general)

Power supply voltage: Electronic part (L+/L -) DC 24V (20-30V); Output section (U2+/U2-) DC 24V (20-30V, supports emergency stop);

Input parameters (Ex i): U ₀=11.8V, I ₀=31mA, P ₀=90mW, linear characteristics, external inductance/capacitance limits vary with explosion-proof level (e.g. Ex ia IIC, L ₀ maximum 47mH, C ₀ maximum 1.5 μ F);

Bus interface: RS485 (screw terminal), PROFIBUS-DP address set through rotary switch (01-99, effective after power failure);

Isolation design: Galvanic isolation is used between power supply, bus, circuit, output, and input.

2. Physical and environmental parameters

Protection level: Electronic module IP66, terminal IP20 (uncovered)/IP30 (covered);

Installation: Suitable for TH35 × 15 (7.5) standard guide rail (EN/IEC 60715), with any installation direction;

Size and weight: 170mm x 96mm x 102mm (width x height x depth), weight 2.1kg;

Environmental conditions: working/storage temperature -40 ℃~+60 ℃ (T4 temperature level), relative humidity 5% -95% (no condensation); Anti vibration (2g/7mm, 5-200Hz, 3-axis), anti impact (15g, 11ms, 3-axis).

3. Terminals and Connections

Terminal specification: 2.5mm ² multi strand wire, terminal screw M2.5 × 0.45mm, tightening torque 0.4Nm;

Grounding requirements: 1-2 grounding terminals should be installed on the right side of the module, and the PA terminal should be connected to the grounding terminal with a 2.5mm ² wire.

Installation and operation specifications

1. Installation requirements

Installation personnel: must have the qualification to install electrical equipment in explosive hazardous areas and have read and understood the instructions;

Preprocessing: Before installation, check that the module is clean and undamaged, there is a power outage, and adjacent live parts are protected;

Operation steps: Insert the module into the guide rail until the buckle makes a sound, and tighten the terminal screws with a torque wrench at 0.4-0.7Nm.

2. Debugging and troubleshooting

Pre debugging inspection: installation correctness, shell integrity, wiring compliance, address and baud rate settings;

Priority for troubleshooting: LED status (such as BF red light indicating bus fault, SF red light indicating short circuit or U2 power failure) → Wiring/terminal fastening → Address/baud rate → Bus terminal and jumper → System restart (required after address change).