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1.4.5 Analog Output cards (AO206)
Each card includes 6 channels. They are used for 4-20mA, 0-20mA current output, 0-5V, 1-5V,
0-10VDC voltage output.
1.4.6 PID Process Control card (PC201)
Each card includes one single loop PID process control function with ramp and soak profile
segment.
1.5 Communication
The standard communication interface is Ethernet with protocol IEEE 802.3 – 10/100 Base T.
Other options are RS-232 / RS-422 / RS-485. Details are explained in
485 wiring.
1.6 External Storage media
The recorder has 256MB internal memory to store the data. There are two types of External
storage media available for the recorder to dump the stored data from internal memory. They are SD card
and USB. Only one storage media can be used at a time in the recorder.
If the recorder is used with 6-channel inputs, the below chart shows the maximum no of days
historical data can be stored based on available memory.
SD card
Log speed
1 second
10 seconds
120 seconds
* The above is an approximation, each record of data uses 2 or 4 bytes of memory depending on the data
type.
For ex: Selected data size = 2 bytes
If the Log Speed (the recording speed of measured data) is set to the speed at 1 second per
data, then for a six channels, a 16GB SD Card will last approximately 15, 808 days [16GB / (2 bytes x 24
hours x 60 minutes x 60 seconds x 6 Channels].
The following formula is to calculate how many days a USB disk can do saving before it is full.
16GB
15, 808 days
158,032 days
1,896,304 days
Page 18 of 479
Chapter 2.4.8 - RS-232, RS-422, RS-
32GB
31,616 days
316,064 days
3,792,608 days
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