SFAR-S-16DI Digital Input Module
Installation Guideline and Technical Specifications
Product Overview
The SFAR-S-16DI is a digital input module designed for industrial automation applications. It features 16 digital inputs and communication capabilities via RS485 with Modbus protocol.
Specifications
| Parameter | Value |
|---|---|
| Voltage | 10-38 V DC; 10-28 V AC |
| Power Consumption | 2.4 W @ 24 V DC; 3 VA @ 24 V AC |
| Digital Inputs | 16x logical "0": 0-3 V, logical "1": 6-36 V |
| Counters | 16x Resolution 32 bits, Frequency max 1 kHz |
| Galvanic Isolation | Max 1500 V rms |
| Interface | RS485, up to 128 devices on the bus |
| Baudrate | From 2400 to 115200 bps |
| Ingress Protection | IP40 - for indoor installation |
| Operating Temperature | -10°C - +50°C |
| Storage Temperature | -40°C - +85°C |
| Relative Humidity | 5 to 95% RH (without condensation) |
| Connectors | Max 2.5 mm² |
| Dimension | 119.1 mm x 101 mm x 22.6 mm |
| Mounting | DIN rail mounting (DIN EN 50022) |
| Housing Material | Plastic, self-extinguishing PC/ABS |
Device Layout and Connections
Top Panel
The top panel features indicators for power status and digital inputs. It also includes controls for setting the device address and restoring default settings.
- Power Status: Indicator light (ON when powered).
- Status of Digital Inputs 1-8: Indicators for input states.
- Status of Digital Inputs 9-16: Indicators for input states.
- Address Setting: Buttons/switches labeled "1-5 - Setting the device address" and "6 - Restore default settings".
- Communication Interface: RS485 Communication port and MiniUSB port.
Digital Inputs Connection
Provides connections for 16 digital inputs (I1-I16) and two encoder inputs (CI1, CI1). A 24V DC power input is also available.
Diagram Description: Terminals labeled I1 through I16, CI1, CI1. A separate terminal for 24V DC input (+ and -).
Communication
Supports RS485 communication. The connection diagram shows RS485+ and RS485- terminals, along with GND, connected via a shielded twisted cable.
Diagram Description: Terminals labeled RS485+, RS485-, GND. Connection indicated for a shielded twisted cable.
Power Supply
The device can be powered by DC or AC voltage.
- DC Voltage: Terminals for GND, VCC, and POWER, accepting 24V DC.
- AC Voltage: Terminals for GND, VCC, and POWER, accepting 24V AC or 230V AC.
Diagram Description: Terminals labeled POWER, GND, VCC for both DC (24V DC) and AC (24V AC / 230V AC) inputs.
Terminals of the Device
A detailed view of the terminal blocks for digital inputs and encoder inputs.
Diagram Description: Terminal blocks labeled I1 through I16, and C11, C11 (likely for encoder inputs, repeated for clarity or specific function), and C2, C2. The diagram shows the physical layout of these terminals.
Modbus Registered Access
The following table lists the Modbus registers available for reading and writing, along with their descriptions.
| Modbus Dec | Modbus Hex | Register Name | Access | Description |
|---|---|---|---|---|
| 30001 | 0x00 | Version/Type | Read | Version and type of the device |
| 30002 | 0x01 | Switches | Read | Switches state |
| 40003 | 0x02 | Baud rate | Read & Write | RS485 baud rate |
| 40004 | 0x03 | Stop Bits & Data Bits | Read & Write | No. of stop bits & data bits |
| 40005 | 0x04 | Parity | Read & Write | Parity bit |
| 40006 | 0x05 | Response Delay | Read & Write | Response delay in ms |
| 40007 | 0x06 | Modbus Mode | Read & Write | Modbus mode (ASCII or RTU) |
| 40018 | 0x11 | Inputs filter | Read & Write | Configuration of the inputs filter |
| 40033 | 0x20 | Received packets LSR (Least Significant Reg.) | Read & Write | No. of received packets |
| 40034 | 0x21 | Received packets MSR (Most Significant Reg.) | Read & Write | |
| 40035 | 0x22 | Incorrect packets LSR | Read & Write | No. of received packets with error |
| 40036 | 0x23 | Incorrect packets MSR | Read & Write | |
| 40037 | 0x24 | Sent packets LSR | Read & Write | No. of sent packets |
| 40038 | 0x25 | Sent packets MSR | Read & Write | |
| 30051 | 0x32 | Inputs | Read | Inputs state |
| 40053 | 0x34 | Counter 1 LSR | Read & Write | 32-bit counter 1 |
| 40054 | 0x35 | Counter 1 MSR | Read & Write | 32-bit value of captured counter 1 |
| 40055 | 0x36 | Counter 2 LSR | Read & Write | 32-bit counter 2 |
| 40056 | 0x37 | Counter 2 MSR | Read & Write | 32-bit value of captured counter 2 |
| 40057 | 0x38 | Counter 3 LSR | Read & Write | 32-bit counter 3 |
| 40058 | 0x39 | Counter 3 MSR | Read & Write | 32-bit value of captured counter 3 |
| 40059 | 0x3A | Counter 4 LSR | Read & Write | 32-bit counter 4 |
| 40060 | 0x3B | Counter 4 MSR | Read & Write | 32-bit value of captured counter 4 |
| 40061 | 0x3C | Counter 5 LSR | Read & Write | 32-bit counter 5 |
| 40062 | 0x3D | Counter 5 MSR | Read & Write | 32-bit value of captured counter 5 |
| 40063 | 0x3E | Counter 6 LSR | Read & Write | 32-bit counter 6 |
| 40064 | 0x3F | Counter 6 MSR | Read & Write | 32-bit value of captured counter 6 |
| 40065 | 0x40 | Counter 7 LSR | Read & Write | 32-bit counter 7 |
| 40066 | 0x41 | Counter 7 MSR | Read & Write | 32-bit value of captured counter 7 |
| 40067 | 0x42 | Counter 8 LSR | Read & Write | 32-bit counter 8 |
| 40068 | 0x43 | Counter 8 MSR | Read & Write | 32-bit value of captured counter 8 |
| 40069 | 0x44 | Counter 9 LSR | Read & Write | 32-bit counter 9 |
| 40070 | 0x45 | Counter 9 MSR | Read & Write | 32-bit value of captured counter 9 |
| 40071 | 0x46 | Counter 10 LSR | Read & Write | 32-bit counter 10 |
| 40072 | 0x47 | Counter 10 MSR | Read & Write | 32-bit value of captured counter 10 |
| 40073 | 0x48 | Counter 11 LSR | Read & Write | 32-bit counter 11 |
| 40074 | 0x49 | Counter 11 MSR | Read & Write | 32-bit value of captured counter 11 |
| 40075 | 0x4A | Counter 12 LSR | Read & Write | 32-bit counter 12 |
| 40076 | 0x4B | Counter 12 MSR | Read & Write | 32-bit value of captured counter 12 |
| 40077 | 0x4C | Counter 13 LSR | Read & Write | 32-bit counter 13 |
| 40078 | 0x4D | Counter 13 MSR | Read & Write | 32-bit value of captured counter 13 |
| 40079 | 0x4E | Counter 14 LSR | Read & Write | 32-bit counter 14 |
| 40080 | 0x4F | Counter 14 MSR | Read & Write | 32-bit value of captured counter 14 |
| 40081 | 0x50 | Counter 15 LSR | Read & Write | 32-bit counter 15 |
| 40082 | 0x51 | Counter 15 MSR | Read & Write | 32-bit value of captured counter 15 |
| 40083 | 0x52 | Counter 16 LSR | Read & Write | 32-bit counter 16 |
| 40084 | 0x53 | Counter 16 MSR | Read & Write | 32-bit value of captured counter 16 |
| 40085 | 0x54 | CCounter 1 LSR | Read & Write | 32-bit value of captured counter 1 |
| 40086 | 0x55 | CCounter 1 MSR | Read & Write | |
| 40087 | 0x56 | CCounter 2 LSR | Read & Write | 32-bit value of captured counter 2 |
| 40088 | 0x57 | CCounter 2 MSR | Read & Write | |
| 40089 | 0x58 | CCounter 3 LSR | Read & Write | 32-bit value of captured counter 3 |
| 40090 | 0x59 | CCounter 3 MSR | Read & Write | |
| 40091 | 0x5A | CCounter 4 LSR | Read & Write | 32-bit value of captured counter 4 |
| 40092 | 0x5B | CCounter 4 MSR | Read & Write | |
| 40093 | 0x5C | CCounter 5 LSR | Read & Write | 32-bit value of captured counter 5 |
| 40094 | 0x5D | CCounter 5 MSR | Read & Write | |
| 40095 | 0x5E | CCounter 6 LSR | Read & Write | 32-bit value of captured counter 6 |
| 40096 | 0x5F | CCounter 6 MSR | Read & Write | |
| 40097 | 0x60 | CCounter 7 LSR | Read & Write | 32-bit value of captured counter 7 |
| 40098 | 0x61 | CCounter 7 MSR | Read & Write | |
| 40099 | 0x62 | CCounter 8 LSR | Read & Write | 32-bit value of captured counter 8 |
| 40100 | 0x63 | CCounter 8 MSR | Read & Write | |
| 40101 | 0x64 | CCounter 9 LSR | Read & Write | 32-bit value of captured counter 9 |
| 40102 | 0x65 | CCounter 9 MSR | Read & Write | |
| 40103 | 0x66 | CCounter 10 LSR | Read & Write | 32-bit value of captured counter 10 |
| 40104 | 0x67 | CCounter 10 MSR | Read & Write | |
| 40105 | 0x68 | CCounter 11 LSR | Read & Write | 32-bit value of captured counter 11 |
| 40106 | 0x69 | CCounter 11 MSR | Read & Write | |
| 40107 | 0x6A | CCounter 12 LSR | Read & Write | 32-bit value of captured counter 12 |
| 40108 | 0x6B | CCounter 12 MSR | Read & Write | |
| 40109 | 0x6C | CCounter 13 LSR | Read & Write | 32-bit value of captured counter 13 |
| 40110 | 0x6D | CCounter 13 MSR | Read & Write | |
| 40111 | 0x6E | CCounter 14 LSR | Read & Write | 32-bit value of captured counter 14 |
| 40112 | 0x6F | CCounter 14 MSR | Read & Write | |
| 40113 | 0x70 | CCounter 15 LSR | Read & Write | 32-bit value of captured counter 15 |
| 40114 | 0x71 | CCounter 15 MSR | Read & Write | |
| 40115 | 0x72 | CCounter 16 LSR | Read & Write | 32-bit value of captured counter 16 |
| 40116 | 0x73 | CCounter 16 MSR | Read & Write | |
| 40117 | 0x74 | Counter Config 1 | Read & Write | Counter Configuration |
| 40118 | 0x75 | Counter Config 2 | Read & Write | +1 - time measurement (if 0 counting impulses) |
| 40119 | 0x76 | Counter Config 3 | Read & Write | +2 - autocatch counter every 1 sec |
| 40120 | 0x77 | Counter Config 4 | Read & Write | +4 - catch value when input low |
| 40121 | 0x78 | Counter Config 5 | Read & Write | +8 - reset counter after catch |
| 40122 | 0x79 | Counter Config 6 | Read & Write | +16 - reset counter if input low |
| 40123 | 0x7A | Counter Config 7 | Read & Write | +32 - encoder |
| 40124 | 0x7B | Counter Config 8 | Read & Write | |
| 40125 | 0x7C | Counter Config 9 | Read & Write | |
| 40126 | 0x7D | Counter Config 10 | Read & Write | |
| 40127 | 0x7E | Counter Config 11 | Read & Write | |
| 40128 | 0x7F | Counter Config 12 | Read & Write | |
| 40129 | 0x80 | Counter Config 13 | Read & Write | |
| 40130 | 0x81 | Counter Config 14 | Read & Write | |
| 40131 | 0x82 | Counter Config 15 | Read & Write | |
| 40132 | 0x83 | Counter Config 16 | Read & Write | |
| 40133 | 0x84 | Catch | Read & Write | Catch counter |
| 40134 | 0x85 | Status | Read & Write | Captured counter |
Installation Guideline and Safety Precautions
Please read these instructions carefully before operating the device. For questions, contact the iSMA CONTROLLI Support Team at support@ismacontrolli.com.
General Safety Warnings
- ⚠️ Before wiring, removing, or mounting, ensure the power is OFF to prevent electric shock.
- ⚠️ Improper wiring can damage the product and cause hazards. Ensure correct wiring before powering on.
- ⚠️ Do not touch electrically charged parts, such as power terminals, to avoid electric shock.
- ⚠️ Do not disassemble the product, as it may cause electric shock or faulty operation.
- ⚠️ Use the product only within the specified operating ranges (temperature, humidity, voltage, etc.) to prevent fire or faulty operation.
- ⚠️ Firmly tighten all wires to the terminals. Loose connections may cause fire.
Installation Recommendations
- Avoid installing the product near high-power electrical devices, inductive loads, or switching devices, as this can cause interference and unstable operation.
- Proper arrangement of power and signal cabling is crucial. Avoid running power and signal wires in parallel cable trays to prevent interference.
- It is recommended to use AC/DC power suppliers for controllers/modules, as they offer better insulation than AC/AC transformers and isolate from inductive phenomena.
- Power supply systems should be protected against overvoltage and lightning discharges using external devices.
- Do not power the product and high-power/inductive loads from a single power source to prevent disturbances from loads affecting control devices.
- If using an AC/AC transformer, use a maximum 100 VA Class 2 transformer to avoid unwanted inductive effects.
- To prevent disturbances caused by long monitoring/control lines and shared power supplies, use galvanic separators.
- Protect signal and communication lines against external electromagnetic interferences using properly grounded shielded cables and ferrite beads.
- Switching large inductive loads with digital output relays can cause interference. Use external relays/contactors for such loads. Controllers with triac outputs can also mitigate overvoltage.
- For systems with switched, inductive loads on AC mains (120/230 V), consider external circuits like snubbers, varistors, or protection diodes if noise reduction is insufficient.
Electrical Installation Compliance
? Electrical installation must comply with national wiring codes and local regulations.
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