Table of Contents
Synapse remote I/O module
The Synapse module (further reffered to as 'module') is produced under 7bit trademark and designed for data aquisition from discrete sensors and 1-Wire temperature sensors, as well as load control with digital outputs.
The module has 2 Ethernet interfaces (working in a “bridge” mode) for LAN connection and supports Modbus TCP & MQTT protocols. The enclosure is for panel / DIN 35 mm mount.
Specifications
| Power: | 220VAC |
| Ethernet mode | DHCP client / static IP |
| Digital Inputs | 8 (24Vdc) |
| Counter inputs (non-volitile) | 8 (digital inputs can be counting inputs with max. frequency of 1kHz, with anti-jitter filter of a 1ms step ) |
| Digital Outputs | (2 groups x 4 outputs (symistor or relay ))2A |
| 1Wire bus | up to 32 sensors, cable length up to 200 мeters |
| Power supply for 'dry contacts' | yes |
| Enclosure protection | IP40 |
| Dimensions (HхWхD): | 145х90х40 mm. |
| Weight: | 240 g. |
Modbus registers map
There are 1000 HR registers available for the user, some of them are reserverd for special functions:
| Holding Registers | |
|---|---|
| 000-999: (F-RAM) |
| Discrete Inputs | |
|---|---|
| DI0 ~ 7 | Digital input state 0 ~ 7 |
| HR20 ~ 27 | Digital filter. (DI 0 ~ 7) |
| Coils | |
|---|---|
| C0..7 | Digital outputs 0..7 |
| Safety state | |
| HR35 | Keep previous outputs state after restaft, 0 - off, 1 - on |
| Predictive maintenance registers | |
|---|---|
| HR0 ~ HR14 | countung input (DI 0 ~ 7) dw, high word comes first |
| HR60 ~ HR 74 | DI 0 ~ 7 time on totalizers |
| PWM for triac outputs | |
|---|---|
| HR111 ~ 118 | DO1 ~ 8 PWM duty cycle |
* this option available for the SSR outputs
| System | |
|---|---|
| HR30 | power-ups counter |
| HR31 | uptime in seconds (high) |
| HR32 | uptime in seconds (low) |
| Temperatures | |
|---|---|
| IR0 ~ IR31 | 1-Wire temperature 1 (-1000° - sensor failed or not connected) |
| HR33 | Total sensors quantity or Init** (writing 0 to HR33 clears the enumeration) |
Auto enumeration for 1-Wire sensors
Each DS18B20 has their own unique serial number. Using a special search algorithm, the Synapse finds and saves the enumeration scheme for the sensors found in the static memory. New sensors still can be added to the existing enumeration by
- powering on or resetting the module
- writing non-zero value into HR33 register
Modbus map csv-file
For the convinence, a module register map is provided from this link to import in the WebHMI project.
Documentaion
Synapse v2
In the v2, there were the following features added:
- 2 analog inputs (4..20 mA)
- Lua engine for user scripts
- Universal ~220Vac/=24Vdc input
Please refer to the product page.
Please refer to the user manual for the v2.