M A G U I R E P R O D U C T S , I N C .
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W E I G H S C A L E B L E N D E R
Communications
The WSB 4088 Standard and WSB 1212 controllers communicates data and commands over two
protocols, Modbus TCP and MLAN TCP.
Modbus TCP
– Modbus TCP is the primary communication protocol for PLC communication to
the Maguire Blenders. Modbus TCP must be enabled at the controller and uses the IP Address
to communicate over port 502. For more information on Modbus TCP, see the Maguire Modbus
register mapping document.
To enable Modbus see *67 on page 62.
MLAN Protocol (Maguire Local Area Network)
– MLAN is a protocol consisting of commands
that allows two-way communications to the Maguire Weigh Scale Blenders. All Maguire Weigh
Scale Blenders dated back to 1992 contain the essential MLAN commands for basic control and
data collection while newer Maguire controllers contain additional commands for enhanced control
and data collection. The MLAN Protocol was initially intended to provide information for individuals
who are writing software for PLCs and needed to communicate with the Maguire Weigh Scale
Blender. This legacy protocol is the method used by our G2 Software as well as the OPC
(Kepware, Dimension Software and Software Toolbox). The Protocol is available for free and is
explained in detail in our MLAN Protocol Manual. MLAN communications use the ID number and
IP address to communicate over port 9999. Configuration of the ID number and IP address must
be setup in the controller. To set the IP address see *65 on page 61. To set the MLAN ID number
see *66 on page 62. See the MLAN Protocol Manual for more information on the MLAN
commands. MLAN communications over Ethernet (includes G2, OPC and direct MLAN) use port
9999 to communicate. The 4088 Standard and 1212 controllers also communicate the MLAN
protocol over RS-232 and RS-485 for backward compatibility on older MLAN communication
networks.
For more information on communication options visit:
IMPORTANT: If your older 1212 controller (pre-2007 model) has a blue display
but the star function *65 responds with "INVALID" then please contact Maguire
Products for a main board upgrade.
Summary of Contents for WEIGH SCALE BLENDER WSBMB Series
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