Chapter 8 - Representing Data With Graphics Objects; Using In Ter Nal Data Mem Ory Of Oit - Maple Systems Silver Series Installation And Operation Manual

Rep re senting Data with Graph ics Objects

Chapter 8 - Representing Data with Graphics Objects

EasyBuilder includes several active graphics objects or 'parts' which are used to represent data that is stored in the
PLC or internal memory of the OIT. The data represented can be single bit coils, 16-bit, 32-bit, or 64-bit registers.
The data can be represented as numbers, ASCII characters, or as graphic shapes or bitmaps. This chapter focuses on
only parts that perform relatively simple functions. More complex parts used for alarms, trending, etc. will be
reserved for later chapters.

Using In ter nal Data Mem ory of OIT

The Silver Series contains internal data memory, which can be used to store information that either must be sent to
or received from the PLC. The OIT has two types of Internal Data Registers; Local and Recipe. When using local
registers, Local Word and Local Bit, the OIT retains the data stored for as long as the OIT is operating. Once power
is removed, all data stored inside the OIT is lost.
When using Recipe registers, Recipe Word and Recipe Bit, the OIT retains the data stored even when power is
removed. The recipe registers data is maintained using the OIT internal battery.
The following chart shows the memory available in the OIT:
Name Range
LW
0-9999
(Local Word)
LB
0-9999
(Local Bit)
Ms_LW
0-9999
(Master-Slave
Local Word)
Ms_LB
0-9999
(Master-Slave
Local Bit)
RWI
0-32767
(Recipe Word
Index)
RW
0-65535
(Recipe Word)
Ms_RW
0-65535
(Master-Slave
Recipe Word)
RBI
00-2047F
(Recipe Bit Index)
RB
00-2047F
(Recipe Bit)
Ms_RB
00-4095F
(Master-Slave
Recipe Bit)
Part of the Local Word (LW9000-9999) and Local Bit (LB9000-9999) registers are reserved for internal use by the
OIT:
Description
These are internal data registers which can be used to store 16-bit, 32-bit, or 64-bit
values.
These are internal coil registers which can be used to store two-state values
These are internal data registers used for OIT-OIT Master/Slave communications. When
you configure a slave OIT with these addresses, the slave will read/write to the
corresponding LW address in the master OIT. This can be used to exchange
information between slave and master OITs.
These are internal data registers used for OIT-OIT Master/Slave communications. When
you configure a slave OIT with these addresses, the slave will read/write to the
corresponding LB address in the master OIT. This can be used to exchange information
between slave and master OITs.
Reserved for recipes. The address referred to by an RWI device is actually the specified
address plus an indexed offset. The offset is the value in address LW9000.
Reserved for recipe registers.
Reserved for recipe words when using multiple OITs
Reserved for recipes. The address referred to by an RBI device is actually the specified
address plus an indexed offset. The offset is the value in address LW9000. The bit is
addressed as a hex digit placed at the end of the word address.
Reserved for recipe bits. The RB device allows Bit-level access to recipe data. RB
devices use same memory area as the RW devices. They reference the first 10 bits of
each RW. For example, Bit RBO is Bit 0 in RWO: Bit R10 is Bit 0 in RW1, RB50 is Bit 0
in RW5. The bit is addressed as a hex digit placed at the end of the word address.
Reserved for recipe bits when using multiple OITs. The bit is addressed as a hex digit
placed at the end of the word address.
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