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SfAR-1M-4DI User Manual

www.ismacontrolli.com

DMP269en | 3rd Issue rev. 1 | 05/2022

page 14 of 16

Modbus 

Address

Decimal 

Address

Hex 

Address

Register Name

Access

Description

40059

58

0x3A

Counter 4 LSR

Read/write

32-bit counter 4

40060

59

0x3B

Counter 4 MSR

Read/write

40061

60

0x3C

CCounter 1 LSR

Read/write

32-bit value of 

captured counter 1

40062

61

0x3D

CCounter 1 MSR

Read/write

40063

62

0x3E

CCounter 2 LSR

Read/write

32-bit value of 

captured counter 2

40064

63

0x3F

CCounter 2 MSR

Read/write

40065

64

0x40

CCounter 3 LSR

Read/write

32-bit value of 

captured counter 3

40066

65

0x41

CCounter 3 MSR

Read/write

40067

66

0x42

CCounter 4 LSR

Read/write

32-bit value of 

captured counter 4

40068

67

0x43

CCounter 4 MSR

Read/write

40069

68

0x44

Counter Config 1

Read/write

Counter configuration 

+1 – time 

measurement (if 0 

counting impulses) 

+2 – autocatch 

counter every 1 sec 

+4 – catch value when 

input low 

+8 – reset counter 

after catch 

+16 – reset counter if 

input low 

+32 – encoder

40070

69

0x45

Counter Config 2

Read/write

40071

70

0x46

Counter Config 3

Read/write

40072

71

0x47

Counter Config 4

Read/write

40073

72

0x48

Catch

Read/write

Catch counter

40074

73

0x49

Status

Read/write

Captured counter

Table 7. Registered access

7.2  Bit Access

Modbus 

Address

Dec Address

Hex 

Address

Register 

Name

Access

Description

10801

800

0x320

Input 1

Read

Input 1 state

10802

801

0x321

Input 2

Read

Input 2 state

10803

802

0x322

Input 3

Read

Input 3 state

Summary of Contents for SfAR-1M-4DI

Page 1: ...www ismacontrolli com DMP269en 3rd Issue rev 1 05 2022 SfAR 1M 4DI User Manual Expansion Module 4 Digital Inputs ...

Page 2: ...cation 7 4 1 Grounding and Shielding 7 4 2 Network Termination 7 4 3 Types of Modbus Functions 7 4 4 Communication Settings 8 4 4 1 Default Settings 8 4 5 Configuration Registers 8 5 Indicators 10 6 Connections 11 6 1 Block Diagram 11 6 2 Power Supply Connection 11 6 2 1 DC Power Connection 11 6 2 2 AC Power Connection 12 6 3 Communication Bus Connection 12 6 4 Connection of Digital Inputs 12 7 Mo...

Page 3: ...f the product without incurring any liability for the purposes of commercial law This information does not discharge you from the liability of your own judgement and verification We reserve the right to change product specifications without notice Please read the instructions carefully and follow the recommendations concluded therein 1 1 Revision History Rev Date Description 3 1 25 May 2022 Rebran...

Page 4: ...enomena like surges and bursts to devices They also isolate products from inductive phenomena from other transformers and loads Power supply systems for the product should be protected by external devices limiting overvoltage and effects of lightning discharges Avoid powering the product and its controlled monitored devices especially high power and inductive loads from a single power source Power...

Page 5: ...rovides fast processing and quick communication The baud rate is configurable from 2400 to 115200 The module is designed for mounting on a DIN rail in accordance with DIN EN 5002 The module is equipped with a set of LEDs to indicate the status of inputs and outputs which is useful for diagnostic purposes and helping to find errors Module configuration is done via USB by using a dedicated computer ...

Page 6: ...ower supply 3 pin Communication 3 pin Inputs 2 x 3 pin Configuration mini USB Size Height 90 mm Length 56 4 mm Width 17 5 mm Interface RS485 Up to 128 devices Table 2 Technical specification 3 3 Dimensions The appearance and dimensions of the module are shown below The module is mounted directly to the rail in the DIN industry standard Figure 1 Dimensions ...

Page 7: ...signals cable shields should not be interrupted by intermediate terminals the shielding should be earthed directly after the cable enters the cabinet It is recommended to install interference suppressors when switching inductive loads e g coils of contactors relays solenoid valves RC snubbers or varistors are suitable for AC voltage and freewheeling diodes for DC voltage loads The suppressing elem...

Page 8: ...in the 16 bit registers The access to registers is via Modbus RTU or Modbus ASCII 4 4 1 Default Settings Parameter Name Value Address 1 Baud rate 19200 Parity No Data bits 8 Stop bits 1 Reply delay ms 0 Modbus type RTU Table 4 Default settings 4 5 Configuration Registers Modbus Address Decimal Address Hex Address Name Values 40003 2 0x02 Baud Rate 0 2400 1 4800 2 9600 3 19200 4 38400 5 57600 6 115...

Page 9: ...n 3rd Issue rev 1 05 2022 page 9 of 16 Modbus Address Decimal Address Hex Address Name Values 40004 3 0x03 Data Bits 7 7 data bits 8 8 data bits 40006 5 0x05 Response Delay Time in ms 40007 6 0x06 Modbus Mode 0 RTU 1 ASCII Table 5 Configuration registers ...

Page 10: ...6 5 Indicators Figure 2 Indicators Indicator Description ON The LED indicates that the module is correctly powered TX The LED lights up when the unit received the correct packet and sends the answer DI1 2 3 4 The LED indicates that on the input is high state Table 6 Description of indicators ...

Page 11: ...er Manual www ismacontrolli com DMP269en 3rd Issue rev 1 05 2022 page 11 of 16 6 Connections 6 1 Block Diagram Figure 3 Block diagram 6 2 Power Supply Connection 6 2 1 DC Power Connection Figure 4 DC power connection ...

Page 12: ...m DMP269en 3rd Issue rev 1 05 2022 page 12 of 16 6 2 2 AC Power Connection Figure 5 AC power connection 6 3 Communication Bus Connection Figure 6 Communication bus connection 6 4 Connection of Digital Inputs Figure 7 Connection of digital inputs ...

Page 13: ...ode ASCII or RTU 40009 8 0x08 Watchdog Read write Watchdog 40033 32 0x20 Received Packets LSR Least Significant Register Read write No of received packets 40034 33 0x21 Received Packets MSR Most Significant Register Read write 40035 34 0x22 Incorrect Packets LSR Read write No of received packets with error 40036 35 0x23 Incorrect Packets MSR Read write 40037 36 0x24 Sent Packets LSR Read write No ...

Page 14: ...0067 66 0x42 CCounter 4 LSR Read write 32 bit value of captured counter 4 40068 67 0x43 CCounter 4 MSR Read write 40069 68 0x44 Counter Config 1 Read write Counter configuration 1 time measurement if 0 counting impulses 2 autocatch counter every 1 sec 4 catch value when input low 8 reset counter after catch 16 reset counter if input low 32 encoder 40070 69 0x45 Counter Config 2 Read write 40071 70...

Page 15: ...ounter 1 1154 1153 0x481 Capture 2 Read write Capture counter 2 1155 1154 0x482 Capture 3 Read write Capture counter 3 1156 1155 0x483 Capture 4 Read write Capture counter 4 1169 1168 0x490 Captured 1 Read write Captured value of counter 1 1170 1169 0x491 Captured 2 Read write Captured value of counter 2 1171 1170 0x492 Captured 3 Read write Captured value of counter 3 1172 1171 0x493 Captured 4 R...

Page 16: ...s network as well as to read and write the current value of other registers of the module It is a convenient way to test the system as well as to observe real time changes in the registers Communication with the module is via the USB cable The module does not require any drivers Figure 8 PC connection The SfAR Configurator is a universal software where it is possible to configure all available mod...

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