I-7521 CR

Programmable Intelligent Communication Controller. 1x 5-wire RS-232 or 2-wire RS-485 port and 1x RS-485 port.

Onboard 1 KB Queue buffer

The I-752N series module is equipped with a 1 KB queue buffer for its local RS-232 device. All input data can be stored in the queue buffer until the Host PC has time to read it. This feature allows the Host PC to link thousands of RS-232 devices without any loss of data.

3000V isolation on RS-485 side

COM2 of the I-752N modules is an isolated RS-485 port with 3000 VDC isolation, which protects the local RS-232 devices from transient noises coming from the RS-485 network.

Self-Tuner ASIC inside

The built-in Self-Tuner ASIC on an RS-485 port can auto detect and control the send/receive direction of the RS-485 network. Thus, there is no need for application programs to be concerned about direction control of the RS-485 network.

Can be used as Addressable RS-485 to RS-232 Converter

Most RS-232 devices don’t support device addressing. The ICP DAS I-752N series module assigns a unique address for each RS-232 device installed. When Host PC sends a command with a device address to the RS-485 network, the destination I-752N module removes the address field, and then passes the commands to the specified local RS-232 device. The response from the local RS-232 devices will be returned to the host PC via the I-752N.

Master-type Addressable RS-485 to RS-232 Converter

In that they are Master-type converters which use our R.O.C. Patent086674, while most other converters are Slave-type, which are helpless without a Host PC. In real industrial applications, many users are not satisfied with Slave-type converters as they cannot be adapted to individual requirement. The powerful I-752N series analyzes the local RS-232 devices, DI and DO without the need for a Host PC. Refer to Applications 5~9 for more information in the manual.

Can be used as RS-485 to RS-232 Device Server

The Device Server is an appliance that network enables any device with a serial communication port. Our Intelligent Communication Controllers allow those devices to become connected to the RS-485 network If the user wants to use Ethernet work, he can choose I-7188EN series products.

Features:

• Built-in "Addressable RS-485 to RS-232 Converter" firmware
• Support about 30 well-defined commands
• Support Dual-Watchdog commands
• Support Power-up value & safe value for DO
• The firmware can real-time monitor the onboard DI and control the onboard DO according to user's requirement
• The firmware can real-time monitor the RS-232 device and control the onboard D/O according to user's requirement
• Watchdog timer provides fault tolerance and recovery
• Low power consumption
• R.O.C. Invention Patent No. 086674, No.103060, No. 132457

Manufacturer's warranty: 12 months

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