TTDMâNMM and - California Detection Systems
TTDMâNMM and - California Detection Systems
TTDMâNMM and - California Detection Systems
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Holding Registers — SIM Channel Barrier Resistance <strong>and</strong> Alphanumeric Tag<br />
Modbus Function 03 to Read<br />
Modbus Function 06 to Write<br />
Modbus Function 16 to Block Write<br />
The barrier resistance <strong>and</strong> alphanumeric tag for each SIM channel can be accessed using the same overlay technique used for SIM<br />
channel status. Holding Register 40002 determines the number of the SIM channel that is active, either for reading or writing.<br />
For the alphanumeric tag (ID label), the character string is stored in pairs of ASCII characters, with each pair stored as a 16-bit<br />
integer with the first character in the upper byte, the second character in the lower byte.<br />
To write: Register Value = (ASCII code for character 1) x 256 + (ASCII code for character 2)<br />
To read: ASCII code for character 1 = Integer portion of Register Value/256<br />
ASCII code for character 2 = Register Value modulo 256<br />
Holding Address Address Name/description of 16-bit value<br />
Register (decimal) (hex) (4 hexadecimal characters)<br />
SIM barrier resistance <strong>and</strong> alphanumeric tag (see page 15)<br />
— for SIM in Holding Register 40002<br />
40033 32 0020 SIM Barrier Resistance (0–4095 ohms)<br />
40034 33 0021 SIM ID Label ASCII Characters 1 <strong>and</strong> 2<br />
40035 34 0022 SIM ID Label ASCII Characters 3 <strong>and</strong> 4<br />
40036 35 0023 SIM ID Label ASCII Characters 5 <strong>and</strong> 6<br />
40037 36 0024 SIM ID Label ASCII Characters 7 <strong>and</strong> 8<br />
40038 37 0025 SIM ID Label ASCII Characters 9 <strong>and</strong> 10<br />
40039 38 0026 SIM ID Label ASCII Characters 11 <strong>and</strong> 12<br />
40040 39 0027 SIM ID Label ASCII Characters 13 <strong>and</strong> 14<br />
40041– 40– 0028– reserved<br />
40056 55 0037<br />
40057– 56– 0038– unused<br />
40100 99 0063<br />
Mapped SIM barrier resistance <strong>and</strong> ID strings<br />
40101– 100– 0064– SIM0 — see Registers 40033–40056 for format<br />
40124 123 007B<br />
40125– 124– 007C– SIM1 — see Registers 40033–40056 for format<br />
40148 147 0093<br />
40149– 148– 0094– SIM2 — see Registers 40033–40056 for format<br />
40172 171 00AB<br />
40173– 172– 00AC– SIM3 — see Registers 40033–40056 for format<br />
40196 195 00C3<br />
40197– 196– 00C4– SIM4 — see Registers 40033–40056 for format<br />
40220 219 00DB<br />
40221– 220– 00DC– SIM5 — see Registers 40033–40056 for format<br />
40244 243 00F3<br />
40245– 244– 00F4– SIM6 — see Registers 40033–40056 for format<br />
40268 267 010B<br />
40269– 268– 010C– SIM7 — see Registers 40033–40056 for format<br />
40292 291 0123<br />
40293– 292– 0124– SIM8 — see Registers 40033–40056 for format<br />
40316 315 013B<br />
40317– 316– 013C– SIM9 — see Registers 40033–40056 for format<br />
40340 339 0153<br />
40341– 340– 0154– SIM10 — see Registers 40033–40056 for format<br />
40364 363 016B<br />
40365– 364– 016C– SIM11 — see Registers 40033–40056 for format<br />
40388 387 0183<br />
40389– 388– 0184– SIM12 — see Registers 40033–40056 for format<br />
40412 411 019B<br />
40413– 412– 019C– SIM13 — see Registers 40033–40056 for format<br />
40436 435 01B3<br />
40437– 436– 01B4– SIM14 — see Registers 40033–40056 for format<br />
40460 459 01CB<br />
40461– 460– 01CC– SIM15 — see Registers 40033–40056 for format<br />
40484 483 01E3<br />
45
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