Metasys TC-9100 Series User Manual

Technical Bulletin—TC-9100 Universal Controller 61
Appendix 1: TC-9100 Item
Descriptions and Tables
The operating parameters of the TC-9100 (constants, logic variables and
analog values), can be accessed through the serial link for control or
supervisory purposes. This appendix gives an overview of all of the
parameters available in the controller. The parameters are called “Items.”
The column headings and symbols used in the Item List tables are
described below:
Heading Description and Symbols
Item
Item Index (or address) in hexadecimal and decimal code.
Type
Item Type, as follows:
Number Floating point number.
1 Byte Unsigned 8-bit number used to represent logic states or
integer numbers 0 to 0FFh (255 dec).
2 Bytes Unsigned 16-bit number used to represent logic states
or unsigned integer numbers 0 to 0FFFFh (65,535 dec).
Connection Internal soft connection to an analog Item, 0=not
connected.
MEM
Item storage type in memory, using the following symbols:
D Non-volatile Configuration Database (EEPROM).*
VR Volatile Dynamic Database – initialized only at power-up
reset.
V Volatile Dynamic Database (RAM).
F Firmware (ROM).
R/W
Read/Write Mode, using the following symbols:
R Read-only Item.
W Read/write Item.
WP Read/write Item in protected EEPROM.*
Tag
Label for the Item, or for a bit within an Item.
PM Tag
Generic label for a Programmable Function Module Item, or for a bit
within one of these Items.
Alg. Tag
Label for an Item, or a bit within an Item, in a Programmable Function
Module, which is dependent upon the configured Algorithm.
*Note: Items in EEPROM may be written up to 10,000 times. These
Items should only be changed very infrequently via the serial
link in order to ensure that this limit is not exceeded during
the lifetime of the controller.
Item List
Symbols

Metasys TC-9100 Series Specifications

General

Brand	Metasys
Model	TC-9100 Series
Category	Controller
Language	English