CAT EMCP 4 - Page 54

Application and Installation Guide EMCP 4 SCADA Data Links
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2. Check selection by reading from register 1499.
Query from PC 01 03 05 DA 00 01 A5 3D
EMCP Response 01 03 02 00 00 B8 44
3. Read first eight (8) module event log entries (it is not possible to read all 20 at once, because the
byte limit for a Modbus packet is (255 bytes – 5 bytes overhead) ÷ 2 bytes/register ÷ 14
registers/entry = 8 log entries at once, maximum).
Query from PC 01 03 05 DB 00 70 34 D9
EMCP Response 01 03 E0 B0 10 09 01 3E 16 00 00 00 00 00 00 00
00 00 00 00 00 00 00 F5 09 FF 01 F4 FF 00 00 58 38 14 01 40 16 00
00 00 00 00 00 00 00 00 00 00 00 00 00 F4 0A FF 00 79 5F 00 01 B4
10 09 01 3E 16 00 00 00 00 00 00 00 00 00 00 00 00 00 00 F5 09 FF
00 17 C5 00 02 B8 10 09 01 3E 16 00 00 00 00 00 00 00 00 00 00 00
00 00 00 F5 09 FF 00 15 E3 00 03 B8 10 09 01 3E 16 00 00 00 00 00
00 00 00 00 00 00 00 00 00 F5 09 FF 00 0D C3 00 04 B4 10 09 01 3E
16 00 00 00 00 00 00 00 00 00 00 00 00 00 00 F5 09 FF 00 0C 83 00
05 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF 00 06 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF 00 07 88 5C
4. Read next eight module event log entries, starting with register 1612, which is the starting register
for entry 9.
Query from PC 01 03 06 4B 00 70 34 B0
EMCP Response 01 03 E0 FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF FF FF 00 08 FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF 00 09 FF
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF 00 0A FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF 00 0B FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF 00 0C FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF 00
0D FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF 00 0E FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF 00 0F 4F FE
5. Read last 4 module event log entries, starting with register 1724, which is the starting register for
entry 17.
Query from PC 01 03 06 BB 00 38 34 B5
EMCP Response 01 03 70 FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF FF FF 00 10 FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF 00 11 FF
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF 00 12 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF 00 13 A2 13