Spectrum Controls 140 EHC 204 00sc User Manual
Page 31
Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
32
Making Bit Settings for 4X Registers
You can only set 4X register bits using ladder logic. This section describes the layout for the registers and defines
the bits. Ladder logic examples are provided in chapter 4, Programming.
The first 4X register controls channel enabling and multiplexing. The following table shows the bit settings for
this register.
Table 3-4 Bit Settings for First 4X Register
Function
1
2
3
4
5
6
7
8
9
10
11 12 13 14
15 16
Bank/Data
Bank 1/ LSW
0
0
Format Select
Bank 2/ MSW
0
1
Bank 3/Rate*
1
0
Bank 4/ Status*
1
1
Data Delivery
Comprehensive
0
Speed
1
Multiplexing
Manual
0
Control
Auto-sequence
1
Parameter
Preset
0
0 0
Definition
Count Limit
0
0 1
(for scale/
Rate Limit
0
1 0
limit word)
M factor
0
1 1
K Factor
1
0 0
R factor
1
0 1
Undefined
1
1 0
Undefined
1
1 1
Not Used
X
Channel Number
Channel 1
0
0
0
(for scale
Channel 2
0
0
1
/limit word)
Channel 3
0
1
0
Channel 4
0
1
1
Channel 5*
1
0
0
Channel 6*
1
0
1
Channel 7*
1
1
0
Channel 8*
1
1
1
Not Used
X X
Scaling**
Enabled
0
Disabled
1
Program
Do Not Program
0
EEPROM
Program
1
Limit Word
Disabled
0
Enabled
1
* Applies only to the 8 channel module.
**When this bit is set it will disable K, M, and R scaling. It has no effect on limit words (preset, count limit, and rate
limit).