Schweitzer Engineering Laboratories SEL-751 - Page 741

E.27
Date Code 20170927 Instruction Manual SEL-751 Relay
Modbus RTU Communications
Communications Protocol
303 (R) CARD E STATUS 0 2 0 1 403
304 (R) CARD Z STATUS 0 2 0 1 404
305 (R) IA STATUS 0 2 0 1 405
306 (R) IB STATUS 0 2 0 1 406
307 (R) IC STATUS 0 2 0 1 407
308 (R) IN STATUS 0 2 0 1 408
309 (R) VA STATUS 0 2 0 1 409
310 (R) VB STATUS 0 2 0 1 410
311 (R) VC STATUS 0 2 0 1 411
312 (R) VS STATUS 0 2 0 1 412
313 (R) RELAY STATUS 0 1 0 1 413
0 = ENABLED
1 = DISABLED
314 (R) SERIAL NUMBER H 0 65535 0 1 414
315 (R) SERIAL NUMBER L 0 65535 0 1 415
316–319 (R) Reserved
c
416–419
Current Data
320 (R) IA CURRENT A 0 65535 0 1 420
321 (R) IA ANGLE deg -1800 1800 0 0.1 421
322 (R) IB CURRENT A 0 65535 0 1 422
323 (R) IB ANGLE deg -1800 1800 0 0.1 423
324 (R) IC CURRENT A 0 65535 0 1 424
325 (R) IC ANGLE deg -1800 1800 0 0.1 425
326 (R) IN CURRENT A 0 65535 0 1 426
327 (R) IN ANGLE deg -1800 1800 0 0.1 427
328 (R) IG CURRENT A 0 65535 0 1 428
329 (R) IG ANGLE deg -1800 1800 0 0.1 429
330 (R) I1 CURRENT A 0 65535 0 1 430
331 (R) I1 ANGLE deg -1800 1800 0 0.1 431
332 (R) AVERAGE CURRENT A 0 65535 0 1 432
333 (R) NEG-SEQ CURR 3I2 A 0 65535 0 1 433
334 (R) CURRENT IMBAL % 0 1000 0 0.01 434
Voltage Data
335 (R) VAB kV 0 65535 0 0.01 435
336 (R) VAB ANGLE deg -1800 1800 0 0.1 436
337 (R) VBC kV 0 65535 0 0.01 437
338 (R) VBC ANGLE deg -1800 1800 0 0.1 438
339 (R) VCA kV 0 65535 0 0.01 439
340 (R) VCA ANGLE deg -1800 1800 0 0.1 440
341 (R) AVERAGE LINE
d
kV 0 65535 0 0.01 441
342 (R) V1 kV 0 65535 0 0.01 442
343 (R) V1 ANGLE deg -1800 1800 0 0.1 443
344 (R) VAN kV 0 65535 0 0.01 444
345 (R) VAN ANGLE deg -1800 1800 0 0.1 445
346 (R) VBN kV 0 65535 0 0.01 446
347 (R) VBN ANGLE deg -1800 1800 0 0.1 447
Table E.34 Modbus Register Map
a
(Sheet 3 of 38)
Modbus Register
Address
b
Name/Enums Units Min Max Default
Scale
Fac to r
DeviceNet
Parameter
Numbers