Watlow SpecView from Watlow - Manual (Page 5)

SpecView from Watlow  5  Watlow Addendum
• Indicates the controller’s location in the panel
• Includes network information such as port and address
When you add instruments to a configuration manually, you have the opportunity to name them as you
wish. When SpecView adds instruments during automatic detection, they are named automatically based
on a default name plus one or more numbers. For the Watlow EZ-ZONE Standard Bus driver, the
automatic names include the communications port, an instrument name, the controller’s address and for
instruments where more than one instance can occur at the same address, the instance number. For
example, the first control loop instrument for an EZ-ZONE controller at zone 5 on communications port
7 is named, “C7-EZ-5 Ctlr-1”.
You can change an instrument’s name whenever you like. See Rename an Instrument on page 29.
Saving Settings in Non-Volatile Memory
Watlow controllers can protect their non-volatile memory from being worn out prematurely due to
excessive use that may occur when communicating with devices such as a PLC that send the same
settings to a controller many times a second. In these controllers, the settings received via
communications can be held in volatile memory that is cleared when the controller is turned off. Since
SpecView will typically send parameter settings to a controller only when you edit a parameter on the
screen, for your convenience you can set the controller to routinely save the parameter settings that
come through communications in non-volatile memory. That way the values you set are saved even
when the controller is powered down. Consult the controller manual for the appropriate parameter,
typically called, “Non-Volatile Save”.
Using EZ-ZONE Controllers with Standard Bus
When automatically detecting a Standard Bus network with the Watlow EZ-ZONE Standard Bus driver,
SpecView reads each device’s part number and adds the appropriate instruments. The table below lists
for each instrument with which part numbers it is used and the format of the address string that must be
entered when configuring SpecView manually.
SpecView Address Strings for EZ-ZONE Devices via Standard Bus
The addresses entered into SpecView for each instrument consist of one or two parts. The table below
indicates which instruments require the second part. Device addresses consist of:
• “z” the Zone number or Standard Bus address (1 to 9, A, B, C, D, E, F, H or J)
• A semicolon when an offset is required
• The offset or instance number required for some instruments supporting PM and RM
controllers. For the individual Function Block instruments the offset is shown as “o” in the
Address String; in that case enter the instance number of the function block. For example, for
Alarm 7 in an RM at zone 5 the Address String is, “5;7”.