Grayhill 70L-OAC

OpenLine® analog modules communicate serially with the controller. Each module has a separate transmit and receive line that operates at 115,200 baud with no parity bits, 8 data bits and 1 stop bit (115.2k, N, 8, 1). The command structure and responses for all modules are detailed in Bulletin No. 743. Each module has a microcontroller and non-volatile serial EEPROM memory. The calibration data is stored within the EEPROM, and may be changed using the appropriate commands and the 70L-PROG field calibration unit. The software provided with the calibration unit communicates with the modules through the serial port of a PC. Calibration equipment is not provided. Digital Output Modules. AC output modules have zero voltage turn-on of the load to greatly reduce generated EMI and RFI. They are highly immune to electrical transients, and have built-in RC snubber networks for increased capability with inductive loads. DC output modules can operate DC loads over a wide voltage range and have built-in voltage spike protection. Digital Input Modules. The output of these modules is a logic level signal which corresponds to the status of the device being monitored. A high level output signal indicates the load is off (the switch is open). A low level output signal indicates the load is on (the switch is closed). Input modules are designed to give fast, clean switching by providing filtering and hysteresis.

Twice the Density of Single Point I/O Modules

Analog and Digital Modules Can Be Mixed in Any Combination

UL Recognized, CSA Certified and CE Compliant

Modules “Click” into Place without the Need for Hold Down Screws

Epoxy Filled for Shock and Vibration Immunity