WMPRO, WMMINI FW >= 1.0 WMMEGA FW >= 2.0

Send a sequence of characters to the RS-485 [or TCP Channel] bus and get a reply

$bus: Optional Bus (Modbus RTU or TCP Bus number) leave blank for RTU,
$values: Characters to send, array or integer

The $bus parameter can be one of the following values:

0 - Modbus RTU

2-10 - Modbus TCP Channel 1-9

Array of numbers

mb_add_dev() - Add a device to the list of polled devices

mb_delete_dev() - Delete a device from the list of active devices

mb_get_dev_by_id() - Return modbus device details by ID

mb_get_dev_by_index() - Return modbus device details by index

mb_get_dev_by_name() - Return modbus device details by name

mb_get_dev_info() - Return modbus device details by type

mb_get_role_array() - Return an array of all roles and their values

mb_get_status_by_role() - Return status of the device attached to the role

mb_get_val_by_role() - Return value of the role

mb_num_devices() - Return number of devices on the modbus

mb_queue_command() - Queue a sequence of characters to the RS-485 bus and get but ignore the reply

mb_scan_complete() - Check to see if a modbus scan has completed

mb_scan_percent() - Return scan percentage completed

mb_set_dev_var() - Set a variable on a modbus device

mb_set_val_by_role() - Set a role value on a modbus device

mb_start_scan() - Initiate an automatic scan of the modbus