9.25
Date Code 20120126 Instruction Manual SEL-2032 Communications Processor
Protocols
Modbus RTU Protocol
Register Maps for
Relay Target Data,
Both Types
The first eight registers of Modbus target data are the collection date and time
stamp. Following the date and time stamp is the target string. The bit labels for
the target string are also shown in MSB to LSB order. You can obtain these bit
labels by typing MAP n BL, where n is the port number.
These maps apply to both the floating-point and integer only map types.
Table 9.10 Example Register Map for History Data, Integer Type
Reg.# Description Units Range
History Map for SEL-121/221,-1,-2,-2A,-3,-4,-5,-6,-8,-10,-16,-17; SEL-121D/221D; SEL-121F/221F,-1,-2, -3,-8; SEL-121G/221G,-3,-
4,-5,-6,-7,-8,-9; SEL-121H/221H; SEL-121S/221S; SEL-PG10/2PG10,-7,-8 (Total history records are 12):
200(R) History Date stamp Month 1–12
201(R) History Date stamp Day of the Month 1–31
202(R) History Date stamp Year 0–99
203(R) History Time stamp Hours 0–23
204(R) History Time stamp Minutes 0–59
205(R) History Time stamp Seconds 0–59
206(R) History Time stamp Milliseconds 0–999
207(R) History Date stamp Day of the week
(Sunday–0
•
•
•
Saturday–6)
0–6
208(R) 1st History Record Number None 1–12
209(R) 1st History Date Stamp Month 1–12
210(R) 1st History Date Stamp Day 1–31
211(R) 1st History Date Stamp Year 0–99
212(R) 1st History Time Stamp Hours 0–23
213(R) 1st History Time Stamp Minutes 0–59
214(R) 1st History Time Stamp Seconds 0–59
215(R) 1st History Time Stamp Milliseconds 0–999
216–218(R) 1st Fault Type None 6 Char
219(R) 1st Fault Location Miles/10 or Kilometers/10 ±3276.7
220(R) 1st Fault Duration Cycles/10 0.0–3276.7 Cycles
221(R) 1st Fault Current A, primary Integer
222(R) 2nd History Record Number None 1–12
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•
•
•
•
•
•
•
•
•
•
•
375(R) 12th Fault Current A Integer
Table 9.11 Example Register Map for Relay Target Data, Both Types (Sheet 1 of 2)
Reg.# Description Units Range
SEL-121/221,-1,-2,-2A,-3,-5,-6:
2100(R) Target Date stamp Month 1–12
2101(R) Target Date stamp Day of the Month 1–31
Courtesy of NationalSwitchgear.com
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