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Rosemount
Rosemount 802 Wireless Multi-Channel Discrete I/O
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8-ch WirelessHART discrete I/O; DI/DO configurable. RFQ + selection help.
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Key parameters
Channels
8 discrete channels, each user-configurable as discrete input or discrete output
Protocol
IEC 62591 WirelessHART 2.4 GHz; update rate 1 s to 60 min
Discrete Input
SPST dry contacts; open >100 kΩ; closed <5 kΩ; momentary ≥10 ms with accumulating count (rollover 1–1,000,000)
Discrete Output
Max 28 Vdc, 100 mA; typical on-resistance 1 Ω; PWR OUT on external power (up to 2 V below supply)
Power Options
Emerson 701P SmartPower black module (up to 7-year life @ 1 min update) or 10–30 Vdc external (max 805 mA)
Rf Power
WK external antenna ≤10 mW (10 dBm) EIRP; WM extended ≤18 mW (12.5 dBm) EIRP
Fits WirelessHART discrete monitoring and control where you need a Rosemount 802 with eight channels, each configurable as discrete input or output.
Key advantages
- Channels — 8 discrete channels, each user-configurable as DI or DO
- Protocol — IEC 62591 WirelessHART 2.4 GHz; update rate 1 s to 60 min
- Inputs — SPST dry contacts; open >100 kΩ; closed <5 kΩ; accumulating count option
- Outputs — Max 28 Vdc, 100 mA; typical on-resistance 1 Ω
- Power — Emerson 701P SmartPower module or 10–30 Vdc external
Typical applications
- Wireless status of switches, runs, and discrete field contacts.
- Discrete outputs to solenoids/indicators on a WirelessHART network.
- Sites standardizing on Emerson SmartPower modules.
Selection guide
- Channel map — Which of 8 are DI vs DO
- Power — 701P battery life vs 10–30 Vdc external
- Antenna — WK external ≤10 mW EIRP vs WM extended ≤18 mW EIRP
- Update rate — 1 s to 60 min vs battery life tradeoff
Common mistakes
- Assuming analog 4–20 mA channels — 802 is discrete I/O only.
- External-power DO expectations without supplying 10–30 Vdc.
- Update rates too fast for the desired battery life.
When to RFQ / what to tell us
- DI/DO channel map and voltages.
- Power module vs external; antenna option; update rate.
- Quantity and ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 141199 |
| Brand | Rosemount |
| Model | Rosemount 802 Wireless Multi Channel Discrete I/O Transmitter |
| Product type | Wireless Discrete I/O Transmitter |
| Channels | 8 discrete channels, each user-configurable as discrete input or discrete output |
| Protocol | IEC 62591 WirelessHART 2.4 GHz; update rate 1 s to 60 min |
| Discrete input | SPST dry contacts; open >100 kΩ; closed <5 kΩ; momentary ≥10 ms with accumulating count (rollover 1–1,000,000) |
| Discrete output | Max 28 Vdc, 100 mA; typical on-resistance 1 Ω; PWR OUT on external power (up to 2 V below supply) |
| Power options | Emerson 701P SmartPower black module (up to 7-year life @ 1 min update) or 10–30 Vdc external (max 805 mA) |
| RF power | WK external antenna ≤10 mW (10 dBm) EIRP; WM extended ≤18 mW (12.5 dBm) EIRP |
| Enclosure | Low-copper aluminum Type 4X / IP66; five ½-14 NPT conduit entries; 5.13 lb (2.33 kg) |
| Temperature limits | Operating/storage −40 to +85 °C (−40 to +185 °F) |
| Antenna | PBT/PC integrated omni-directional; IEEE 802.15.4 radios, 15 channels, time-synchronized hopping |
Documents
FAQ
Q: How many channels? A: Eight discrete channels, each configurable as input or output.
Q: What wireless protocol? A: IEC 62591 WirelessHART at 2.4 GHz.
Q: What should I send for a quote? A: Channel map, power/antenna, update rate, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Channels | 8 discrete channels, each user-configurable as discrete input or discrete output |
| Protocol | IEC 62591 WirelessHART 2.4 GHz; update rate 1 s to 60 min |
| Discrete Input | SPST dry contacts; open >100 kΩ; closed <5 kΩ; momentary ≥10 ms with accumulating count (rollover 1–1,000,000) |
| Discrete Output | Max 28 Vdc, 100 mA; typical on-resistance 1 Ω; PWR OUT on external power (up to 2 V below supply) |
| Power Options | Emerson 701P SmartPower black module (up to 7-year life @ 1 min update) or 10–30 Vdc external (max 805 mA) |
| Rf Power | WK external antenna ≤10 mW (10 dBm) EIRP; WM extended ≤18 mW (12.5 dBm) EIRP |
| Enclosure | Low-copper aluminum Type 4X / IP66; five ½-14 NPT conduit entries; 5.13 lb (2.33 kg) |
| Temperature Limits | Operating/storage −40 to +85 °C (−40 to +185 °F) |
| Humidity | 0 to 100 % RH |
| Emc Vibration | EN61326 industrial EMC; IEC60770-1 vibration (general/pipeline) |
| Antenna | PBT/PC integrated omni-directional; IEEE 802.15.4 radios, 15 channels, time-synchronized hopping |
| Document | PDS MS-00813-0100-4082 Rev AD Feb 2026; Manual MS-00809-0100-4082 Rev AC Dec 2025 |