I-7521D
I-7521D
Addressable RS-485 to RS-232/RS-485 Converter with 2 DI, 3 DO and 7-Segment LED Display (Blue Cover)
Features
- Includes "Addressable RS-485 to RS-232 Converter" firmware
- Supports Dual-Watchdog commands
- Supports Power-up value & safe value for DO
- Supports real-time monitoring/control for the onboard DI/DO
- Includes a 1KB queue buffer for each RS-232 interface
- Low power consumption
- R.O.C. Invention Patent No. 086674, No.103060, No. 132457
- 3000 V isolation on the RS-485 interface
- Includes 7-segment LED indicator
- Introduction
- Application
- Specification
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Introduction
Most RS-232 devices don't support device addressing. The ICPDAS I-752N series assigns a unique address to any RS-232 device installed on an RS-485 network. When the Host PC sends a command with a device address to the RS-485 network, the destination I-752N module will remove the address field, and then pass the other commands to its local RS-232 devices. The response from the local RS-232 devices will be returned to the Host PC via the I-752N module. ICP DAS I-752N products are unique in that they are a Master-type converter that use our R.O.C. Patent 086674, while most other converters are a Slave-type, which cannot operate without a Host PC. In real industrial applications, many users are not satisfied with Slave-type converters as they cannot be adapted to individual requirements.
| I-752N Series Addressable RS-485 to RS-232 Converter | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Model | CPU | SRAM | Flash | EEPROM | RTC | 7-Segment LED | RS-232 | RS-422 | RS-485 | RS-232/485 | DI | DO | |
| I-7521 | 80188, 20 MHz | 512 KB | 512 KB | 2 KB | - | - | - | - | 1 (Note 4) | 1 (Note 6) | 2 | 3 | |
| I-7521D | Y | ||||||||||||
| I-7522 | - | 1 (Note 1) | 1 | ||||||||||
| I-7522D | Y | ||||||||||||
| I-7523 | - | 2 (Note 1,2) | 1 | - | |||||||||
| I-7523D | Y | ||||||||||||
| I-7522A | 80188, 40 MHz | Yes | - | - | 1 (Note 3) | 1 (Note 5) | 1 (Note 7) | 5 | 5 | ||||
| I-7522AD | Y | ||||||||||||
| I-7524 | - | 3 (Note 1) | - | 1 | 1 | ||||||||
| I-7524D | Y | ||||||||||||
| I-7527 | - | 6 (Note 2) | |||||||||||
| I-7527D | Y | ||||||||||||
|
Note: 1. RS-232 (RXD, TXD, CTS, RTS, GND) 2. RS-232 (RXD, TXD, GND) 3. RS-422 (RXD+, RXD-, TXD+, TXD-) 4. RS-485 (Data+, Data-; Self-tuner inside; 3000 VDC isolation) 5. RS-485 (Data+, Data-; Self-tuner inside) 6. RS-232/RS-485 combo (DB-9 male) 7. RS-232/RS-485 combo |
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Application
Specification
| CPU Module | |
|---|---|
| CPU | 80188 or compatible, 20 MHz |
| Flash | 512 KB |
| SRAM | 128 KB |
| Watchdog Timer | Yes |
| Digital Input | |
|---|---|
| Channels | 2 |
| Type | Dry Contact, Non-isolated |
| ON Voltage Level | Close to GND |
| OFF Voltage Level | Open |
| Digital Output | |
|---|---|
| Channels | 3 |
| Type | Open Collector |
| Load Voltage | +30 VDC |
| Load Current | 100 mA |
| COM Ports | |
|---|---|
| Ports |
1 x RS-485 (3000 VDC Isolated) 1 x RS-232/RS-485 (DB-9 male) |
| Baud Rate | 115200 bps Max. |
| Power | |
|---|---|
| Reverse Polarity Protection | Yes |
| Input Range | +10 ~ 30 VDC |
| Consumption | 3.0 W |
| Mechanical | |
|---|---|
| Dimensions (mm) | 72 x 119 x 33 (W x H x D) |
| Installation | DIN-Rail, Wall mounting |
| Environment | |
|---|---|
| Operating Temperature | -25 ~ +75 °C |
| Storage Temperature | -40 ~ +80 °C |
| Humidity | 5 ~ 90 % RH |
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