Table of Contents
Advertisement
1. General Description
1.1 Unique features of recorder
The VR18 is a well-designed paperless recorder with many outstanding features including:
• 6.5〞TFT Color LCD with VGA Display in 640x480 pixels.
• 18 isolated Analog Inputs
• Plug & play I/O cards for easy expansion
• Simple and friendly operation
• Infrared detector to prolong lifetime of LCD
• Solid storage media CF card in high capacity
• 169 mm short depth
• Ethernet as standard and optional RS-232/422/485 communication
• High accuracy 18-bit A-D Analog Input
• 15-bit D-A Analog Output.
• 200 millisecond sample rate.
1.2 Expandable Input and Output Cards
The recorder is equipped with six-rear expansion slots, which work flexibly with the following plug & play
I/O cards.
Analog Input cards (part number AI181, AI182, AI183) : These three cards are used for 1, 2, & 3-
channel analog input.
measurement. Analog input is configured by DIP switches and jumpers on the card before plugging into
rear expansion slot. Refer 2.3 Setting Input and Output Cards.
Digital Output card (DO181): Each card includes 6 alarm relays. Contacts are rated 5 Amp/240 VAC
Digital Input card (DI181): Each card includes 6 channels. Logic Low: -5V minimum, 0.8V maximum,
Logic High: -2V minimum, 5V maximum
Analog Output cards (AO183I, AO183V): Each card includes 3 channels. AO183I is used for 4-20mA,
0-20mA current output, and AO183V is used for 0-5V, 1-5V, 0-10V voltage output.
1.3 Communication
The standard communication interface is Ethernet with protocol IEEE 802.3 - 10 Base T. Other options are
RS-232 / RS-422 / RS-485.
Each input is isolated from each other to avoid noise and to ensure stable
6
Advertisement
Table of Contents
