GÜDE Expert Power Control 8221 Series, Manual

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Expert Power Control 8221/8226 © 2022 GUDE Systems GmbH
Specifications
8 0x40d0 0x41f0 0x4310 0x4430 0x4550 0x4670
9 0x40d2 0x41f2 0x4312 0x4432 0x4552 0x4672
10 0x40d4 0x41f4 0x4314 0x4434 0x4554 0x4674
11 0x40d6 0x41f6 0x4316 0x4436 0x4556 0x4675
12 0x40d8 0x41f8 0x4318 0x4438 0x4558 0x4678
13 0x40da 0x41fa 0x431a 0x443a 0x455a 0x467a
14 0x40dc 0x41fc 0x431c 0x443c 0x455c 0x467c
15 0x40de 0x41fe 0x431e 0x443e 0x455e 0x467e
16 0x40e0 0x4200 0x4320 0x4440 0x4560 0x4680
17 0x40e2 0x4202 0x4322 0x4442 0x4562 0x4682
18 0x40e4 0x4204 0x4324 0x4444 0x4564 0x4684
19 0x40e6 0x4206 0x4326 0x4446 0x4566 0x4686
20 0x40e8 0x4208 0x4328 0x4448 0x4568 0x4688
21 0x40ea 0x420a 0x432a 0x444a 0x456a 0x468a
22 0x40ec 0x420c 0x432c 0x444c 0x456c 0x468c
The measured values of the energy sensors are returned as signed 32-bit integers. On
the even address are first the high-order 16-bit, then follow on the odd address the low-
order 16-bit.
4.10 MQTT
This device supports MQTT 3.1.1 to send configured messages and also to receive com-
mands. This chapter is general for all Gude devices, some Gude models do not have
switchable ports.
·
Default port for an unencrypted connection is port 1883.
·
Default port for a TLS secured connection is port 8883.
·
If the broker allows anonymous login, username and password are arbitrary, but a
username must be specified.
·
If multiple MQTT clients are connected to a broker, the names of the clients must be
different. For this reason, "client_xxxx" is generated as the default name. Here "xxxx"
are the last 4 digits of the MAC address.
Message format
The MQTT messages of the device are always sent in JSON format. E.G..
{"type": "portswitch", "idx": 2, "port": "2", "state": 1, "cause": {"id": 2, "txt": "http"}, "ts":
1632}
This is a switching of the second port to the state on. The source of the switching com-
mand is CGI ("http"). The index is always numeric, "port" can also be alphanumeric for
devices with multiple banks, e.g. "A2". At the end follows a timestamp ("ts"), which in-
dicates the number of seconds the device is on, or unixtime if the device has synchron-
ized with an NTP server.
MQTT Topic Prefix
The topic prefix for the messages can be set in the MQTT configuration. A default would
be e.g. "de/gudesystems/epc/[mac]". Here "[mac]" is a placeholder for the MAC ad-