Differences

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--- en:hiq_hw:wm-1 [2021/10/20 13:40] – neoxy
+++ en:hiq_hw:wm-1 [2022/12/02 13:48] (current) – [Create new secure group] saso_santelj
@@ Line 23: / Line 23: @@
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-===== Installation =====
+===== Installation and mounting =====
   * :!: Carefully open WM-1 module and configure serial communication with jumpers. (Default configuration is 9600bps, 8N1 with normal timeout)
   * :!: Place WM-1 module at least 10cm from other objects. Installation is not recommended inside metal cabinets.
@@ Line 31: / Line 31: @@
     * C - GND
   * Connect to 230V power supply
-  * Configure radio pairing
+  * Bind modules to wireless network
 {{ hiq_hardware:wm1_module_diagram.png?nolink&0x500  }}
+{{ hiq_hardware:wm1_mounting.png?nolink&0x500  }}
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@@ Line 68: / Line 69: @@
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-===== Radio configuration =====
+===== Serial configuration and timeout =====
+  * Available baudrates 2400, 9600, 19200, 38400 bps
+  * Data bits and parity 8N1, 7E1, 8E1, 8N2
+  * :!: Max 64 bytes per transmition
+  * Integrated 240 Ohm termination resistor
+{{ hiq_hardware:wm1_serial.png?nolink&0x500  }}
+===== Wireless binding =====
 ==== Create new secure group ====
-  * turn on all devices as the same time
+  * turn on all devices at the same time
   * within 10 seconds, while RF LED is blinking, press and hold button on one of the devices
   * after a second, the new address is randomly generated and sent to all devices. RF LED will blink 3 times to confirm the new address.
@@ Line 78: / Line 87: @@
 {{ hiq_hardware:wm1_configuration_1.png?nolink&0x500  }}
+==== Add new device to the group ====
+  * turn on the device
+  * within 10 seconds, press and hold button on one of the existing devices
+  * after a second, the existing group address is sent to the new device. RF LED will blink 3 times to confirm the address is sent.
+{{ hiq_hardware:wm1_configuration_2.png?nolink&0x500  }}
+==== Topology examples ====
+  * Modbus master, connected to 12 slaves using a pair of WM-1 devices
+  * Modbus master, connected to 10 slaves, organized in two groups
+  * Modbus master, connected to 5 slaves, each one having local WM-1 device
+{{ hiq_hardware:wm1_topology.png?nolink&0x500  }}
+==== Multiple groups ====
+  * When the system has two or more separate Modbus lines, they should be configured as separate groups.
+  * Each group has a single master and one or more slaves.
+  * Groups can't talk to each other, but they share the same bandwidth.
+  * Two masters may start transmitting at the same time causing collisions.
+  * To reduce number of missed messages, keep the traffic low.
+{{ hiq_hardware:wm1_multiplegroups.png?nolink&0x500  }}
+===== Connection check =====
+  * Press button shortly
+  * RF LED will blink shortly on each connected device
+  * Serial interface is unaffected
+{{ hiq_hardware:wm1_connectioncheck.png?nolink&0x150  }}
+===== Factory reset =====
+  * Hold button and turn the device ON
+  * RF led will blink twice. Group address is now reset to default.
+  * Other devices will not be affected.
+{{ hiq_hardware:wm1_factoryreset.png?nolink&0x200  }}