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AW Company 8809 Industrial Drive, Franksville, WI 53126 à web: www.awcompany.com
Tel: 262-884-9800 Fax: 262-884-9810 | Email: aw@awcompany.com
REV. 4 10/05 EMO-500 Manual.DOC
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WARNING --- IMPORTANT --- WARNING --- IMPORTANT --- WARNING
The communication port does not discriminate any addresses. This means that any address
can be written to as well as read from. Writing to certain addresses will change the operation
of the EMO 500 drastically. Caution is a must !!! Double Check Addresses and Variables
Before Writing to the EMO 500.
WARNING --- IMPORTANT --- WARNING --- IMPORTANT --- WARNING
To calculate the final checksum, convert the decimal number 493 into HEX (493=1EDh)
and take the last two characters (ED) for the checksum.
The final string would look like this:
>01K0F3404EDcr
Important points for serial communication
1. Serial communication will be disabled if the EMO-500 is in programming mode.
2. All characters in the communication string should be in CAPITALS.
Example: >K= is ASCII 75 and will be recognized by the EMO-500, but >k= is ASCII 107
and will not be recognized.
3. All numbers in the communication string are represented in hexadecimal format.
3. You should not try to read or write more than 12 bytes at a time due to limitations of the
EMO-500's serial buffers.
4. The least significant byte of a number is stored at the lower address.
5. The >>= in the transmit string and the >A= in the reply string are not used in the checksum
calculation.
The ASCII characters needed for checksum calculations are:
ASCII Decimal ASCII Decimal
0 48 A 65
1 49 B 66
2 50 C 67
3 51 D 68
4 52 E 69
5 53 F 70
6 54
7 55
8 56 J 74
9 57 K
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