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Update MercuryiTC.md with Ethernet communication details #203

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Update MercuryiTC.md with Ethernet communication details #203

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Update MercuryiTC.md with Ethernet communication details
Tom-Willemsen May 18, 2026
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Update MercuryiTC.md
Tom-Willemsen May 18, 2026
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6 changes: 5 additions & 1 deletion doc/specific_iocs/cryogenics/MercuryiTC.md
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Expand Up @@ -14,7 +14,11 @@ Types of daughter boards are:

## Communications

The device should be talked to via serial (RS232 / ISOBUS in OI terms) at a baud rate of 57600. This is variable on the front panel, but **only while the device is in local mode** (when the box in the bottom left of the home screen **_doesn't_** have an orange background).
The device can be talked to via either:
- Serial (RS232 / ISOBUS in OI terms) at a baud rate of 57600. This is variable on the front panel, but **only while the device is in local mode** (when the box in the bottom left of the home screen **_doesn't_** have an orange background).
- Ethernet link, getting an IP from DHCP which is viewable on the front panel of the device (under the Ethernet configuration screen), or using a static IP. Use port `7020` for communication. The protocol (SCPI) is identical to serial communication.

A blank value for the `IPADDR` macro will cause the IOC to communicate over serial, otherwise it will communicate over Ethernet.

The configuration screens look like:

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