© Microhard Systems Inc. Confidential 90
Values (selection)
Varies by network and unit type
Values
Values (selection)
0 - no repeater
1 - 1 or more repeaters
6.0 Register/Command Reference
S140 Destination Address
As the name implies, this register specifies the ultimate destination for a
modem’s data.
In a Mesh system, the destination address is entered in MAC address format,
where FF:FF:FF:FF:FF:FF is broadcast. For unicast operation, the factory
assigned MAC address of the destination device must be used. Or S105 if S87
= 1.
In PMP and PP modes - the range is 1 to 65535, where 65535 is broadcast:
PMP - Master S140=65535, Remote S140=1
PP - Master S140=UA of Remote, Remote S140=1 (Master)
0 - Point to Multipoint (PMP)
1 - Point to Point (PP)
2 - Mesh
3 - Mesh with Roaming
S133 Network Type
This register defines the type of network being deployed. This register must be
set to the same value on every unit in the system.
Point to Multipoint - The Master broadcasts data to all units, and all remote
units send data back to the Master. (See Section 5)
Point to Point - Point to point traffic between a Master and a Slave (with 0 or
more Repeaters in between). (See Section 4)
S141 (PP/PMP) Repeaters Y/N
This register informs, and only applies to the Master, as to the presence of any
Repeater(s) in the network. With one or more Repeaters in the system, a
network’s throughput is divided in half.
Values (selection)
0 - RS232
1 - RS485 half duplex
2 - RS485 full duplex
S142 Serial Channel Mode
This register selects the serial channel mode for the data port. The default is
RS232. In RS485 either DSR or CTS (set high) can be used to enable the
transmitter of the RS485 driver chip. If &K1 is used, CTS will control the
transmitter. Otherwise DSR does it. In this case the value of &S is ignored. The
RING line is set high and is normally used to enable the receiver of the RS485
driver chip.
Mesh - A Mesh network is a network where radios can communicate with each other directly or, if required through
another mesh node, without all data being routed through a master. (See Section 3)
Mesh with Roaming - This is identical to Mesh S133=2 except a remote may join networks with different S106 and
S180. Used in roaming applications.
Values (selection)
0 - Active all the time
1 - Enabled
S143 Sleep Mode
When set to 0 the modem is active at all times. When S143=1 enables sleep
mode on remotes only. Sleeps for S144 seconds or until the rising edge of the
Wakeup_usr line. Stays on for at least S145 seconds. After that goes to sleep if
all data including over the air is sent. Upon wake up the modems will be out on
sync with the network and need time to re-synchronize. The DSR line can be
configured to indicate when the modem is asleep (DSR = 1) and awake (DSR =
0).
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