Automationdirect.com SOLO SLM Series User manual

SLM Series
Modular Temperature
Controller
User Manual
Manual Number: SLM-USER-M
SOLO

~WARNING ~
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as AutomationDirect. We want your new automation equipment to operate safely. Anyone who
installs or uses this equipment should read this publication (and any other relevant publications)
before installing or operating the equipment.
To minimize the risk of potential safety problems, you should follow all applicable local and
national codes that regulate the installation and operation of your equipment. These codes vary
from area to area and usually change with time. It is your responsibility to determine which codes
should be followed, and to verify that the equipment, installation, and operation is in compliance
with the latest revision of these codes.
At a minimum, you should follow all applicable sections of the National Fire Code, National
Electrical Code, and the codes of the National Electrical Manufacturer’s Association (NEMA).
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standards are necessary for safe installation and operation.
Equipment damage or serious injury to personnel can result from the failure to follow all
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right to make changes to the products and/or publications at any time without notice and without
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revisions of the product.
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~ AVERTISSEMENT ~
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Please include the Manual Number and the Manual Issue, both shown below, when
communicating with Technical Support regarding this publication.
Manual Number: SLM-USER-M
Issue: 1st Edition
Issue Date: 07/2023
SOLO SLM S
M T
C U M
Publication History
Issue Date Description of Changes
First Edition 07/2023 Original Issue

T 
C
Chapter 1: Getting Started..................................... 1–1
Manual Overview ...............................................................1–2
Overview of this Publication�������������������������������������������������������������������������� 1–2
Who Should Read This Manual���������������������������������������������������������������������� 1–2
Technical Support������������������������������������������������������������������������������������������ 1–2
Supplemental Manuals ���������������������������������������������������������������������������������� 1–2
Special Symbols ��������������������������������������������������������������������������������������������� 1–2
SOLO Modular Temperature Controller Introduction ..........1–3
General Description ��������������������������������������������������������������������������������������� 1–3
Unpacking������������������������������������������������������������������������������������������������������� 1–4
Model Number Explanation��������������������������������������������������������������������������� 1–4
SOLO Modular Temperature Controller Specifications........1–5
Chapter 2: Installation and Wiring ......................... 2–1
Installation Considerations.................................................2–2
Mounting Instructions ........................................................2–2
Controller Dimensions........................................................2–4
Safety Information .............................................................2–5
Terminal Identification.......................................................2–7
Chapter 3: LED Display and Setup Parameters....... 3–1
LED Display ........................................................................3–2
Parameter List....................................................................3–3
Reset to Factory Default ................................................... 3–17
SOLO Modular Temperature Controller User Manual
vii

Table of Contents
viii SOLO Modular Temperature Controller User Manual
Chapter 4: Controller Inputs and Outputs.............. 4–1
Control Input Types............................................................4–2
Control Output Types .........................................................4–3
Alarm Outputs....................................................................4–7
Chapter 5: Control Modes ...................................... 5–1
PID Control.........................................................................5–2
On / Off Control ..................................................................5–2
Ramp / Soak Control...........................................................5–3
Manual Control...................................................................5–4
Chapter 6: Configuration Software ........................ 6–1
PC Connection....................................................................6–2
Software Installation..........................................................6–3
Starting SL-SOFT ................................................................6–6
SL-SOFT Online Help ..........................................................6–6
Chapter 7: Modbus Communication....................... 7–1
Modbus Protocol ................................................................7–2
Registers ............................................................................7–2
Connection with the DirectLOGIC PLC.................................7–7
Connection with the C-more and C-more Micro HMI panels.7–9

ix
Table of Contents
SOLO Modular Temperature Controller User Manual
1st Ed. 07/2023
Appendix: Modbus Address Map for Ramp / Soak
Control.................................................................. A–1
Last Step Number.............................................................. A–2
Additional Cycles............................................................... A–2
Next Pattern Number ........................................................ A–2
Ramp / Soak SV ................................................................. A–3
Ramp / Soak Time ............................................................. A–4

Chapter
1
1
Getting Started
Chapter
Chapter
In this Chapter...
Manual Overview .................................................................. 1–2
Overview of this Publication�������������������������������������������������������������������������������1–2
Who Should Read This Manual���������������������������������������������������������������������������1–2
Technical Support�����������������������������������������������������������������������������������������������1–2
Supplemental Manuals ���������������������������������������������������������������������������������������1–2
Special Symbols ��������������������������������������������������������������������������������������������������1–2
SOLO Modular Temperature Controller Introduction ............. 1–3
General Description ��������������������������������������������������������������������������������������������1–3
Unpacking������������������������������������������������������������������������������������������������������������1–4
Model Number Explanation��������������������������������������������������������������������������������1–4
SOLO Modular Temperature Controller Specifications........... 1–5

Chapter 1: Getting Started
1–2 SOLO Modular Temperature Controller User Manual
Manual Overview
Overview of this Publication
The SOLO Modular Temperature Controller User Manual describes the
installation, configuration, and methods of operation of the SOLO Modular
Temperature Controller.
Who Should Read This Manual
This manual contains important information for those who will install, maintain,
and/or operate any of the SOLO Modular Temperature Controllers.
Technical Support
By Telephone: [phone]
(Mon.-Fri., 9:00 a.m.-6:00 p.m. E.T.)
On the Web: support.automationdirect.com
Our technical support group is glad to work with you in answering your questions.
If you cannot find the solution to your particular application, or, if for any reason
you need additional technical assistance, please call technical support at 770-844-
4200. We are available weekdays from 9:00 a.m. to 6:00 p.m. Eastern Time.
We also encourage you to visit our web site where you can find technical and
non-technical information about our products and our company. Visit us at www.
automationdirect.com.
Supplemental Manuals
If you are familiar with industrial control type devices, you may be able to get up
and running with just the aide of the Quick Start Guide that is included with each
SOLO Modular Temperature Controller.
Special Symbols
When you see the “notepad” icon in the left-hand margin, the paragraph to its
immediate right will be a special note.
When you see the “exclamation mark” icon in the left-hand margin, the
paragraph to its immediate right will be a warning. This information could prevent
injury, loss of property, or even death (in extreme cases).

1–3
Chapter 1: Getting Started
SOLO Modular Temperature Controller User Manual
1st Ed. 07/2023
SOLO Modular Temperature Controller Introduction
General Description
The SOLO Modular Temperature Controller is a single loop dual output
temperature controller that can control both heating and cooling simultaneously.
There are four types of control modes: PID, ON / OFF, Manual, and Ramp / Soak
control. Depending upon the particular model of controller, the available outputs
include relay, voltage pulse, current, and linear voltage. There are up to two alarm
outputs available to allow twelve alarm types in the initial setting mode. SOLO
Modular can accept various types of thermocouple, RTD, or analog inputs, and has
a built in RS-485 interface using Modbus slave (ASCII or RTU) communication
protocol. SOLO Modular SLM1 units provide communication and power
terminals to the SLM2 units connected to the SLM1 SOLO Modular unit.
Other features include:
 Auto Tuning (AT) function with PID control
• Process variable retransmission on current and linear voltage models
 DIN rail mountable
 LEDs for indication and diagnostics
 Easy configuration using SL-SOFT SOLO configuration software or Modbus
communications
 Selectable between °C and °F
 cULus and CE agency approvals

Chapter 1: Getting Started
1–4 SOLO Modular Temperature Controller User Manual
Unpacking
After receiving the SOLO Modular Temperature Controller, please check for the
following:
• Make sure that the package includes the Controller, a 249 ohm resistor and the
Quick Start Guide.
• Inspect the unit to insure it was not damaged during shipment.
• Make sure that the part number indicated on the serial number label corresponds
with the part number of your order.
SLM Quick Start
Guide
SLM Temperature
Controller
249 ohm
resistor
Model Number Explanation
SLM 1 - V
Unit Type
1: Main unit with power and communications terminals
2: Extension unit
Solo Modular Temperature Controller
Output
R: Relay output
V: Voltage Pulse output
C: DC Current output
L: Linear Voltage output

1–5
Chapter 1: Getting Started
SOLO Modular Temperature Controller User Manual
1st Ed. 07/2023
SOLO Modular Temperature Controller
Specifications
Specifications
Operating Voltage Range 21.6 to 26.4 VDC
Power Consumption 5 VA Max
Control Mode PID, ON/OFF, Ramp / Soak control or Manual
Vibration Resistance 10 to 55 Hz, 10 m/s2for 10 min, each in X, Y and Z directions
Shock Resistance Max. 300 m/s2, 3 times in each 3 axes, 6 directions
Ambient Temperature Range 32°F to 122°F (0°C to 50°C)
Storage Temperature Range -4°F to 149°F (-20°C to 65°C)
Altitude 2000m or less
Relative Humidity 35% to 80% (non-condensing)
RS-485 Communication Modbus slave ASCII / RTU protocol
Transmission Speed 2400, 4800, 9600, 19.2K, 38.4K bps
Agency Approvals cULus, CE (UL file number E311366)
Pollution Degree Degree 2 - Normally, only non-conductive pollution occurs.
Temporary conductivity caused by condensation is to be expected
Input Types
• Thermocouple* K, J, T, E, N, R, S, B, L, U, TXK
• Platinum RTD 3-wire Pt100, JPt100
• Analog
0-50 mV, 0-5V, 0-10V, 0-20 mA, 4-20 mA (sinking)
(Current input requires the installation of the
supplied 249 Ω resistor)
Input Accuracy
• Thermocouple* ± 0.3% full scale
• Platinum RTD ± 0.2% full scale
• Analog ± 0.3% full scale ± 1 digit
Input Sampling Rates
• Thermocouple 400ms / per scan
• Platinum RTD 400ms / per scan
• Analog 150ms / per scan
Control Output Options
• Relay (R) 3A @ 250VAC
• Voltage Pulse (V) DC 12V Max, output current 40mA Max
• Current (C) DC 4-20 mA output (sourcing) (Load resistance: Max 500Ω)
• Linear Voltage (L) DC 0-10V (Load resistance Min 1KΩ)
*Note: Use only ungrounded thermocouples.

Chapter
2
2
Installation
and Wiring
Chapter
Chapter
In this Chapter...
Installation Considerations.................................................... 2–2
Mounting Instructions ........................................................... 2–2
Controller Dimensions........................................................... 2–4
Safety Information ................................................................ 2–5
Terminal Identification.......................................................... 2–7

Chapter 2: Installation and Wiring
2–2 SOLO Modular Temperature Controller User Manual
Installation Considerations
Improper installation of the controller will greatly reduce its life. Be sure to observe
the following precautions when selecting a mounting location:
Warning: Failure to observe these precautions may damage the controller and
void the warranty!
• Do not mount the controller near heat-radiating elements.
• Do not install the controller in a place subjected to high temperature, high humidity,
excessive vibration, corrosive gases or liquids, or airborne dust or metallic particles.
• Do not restrict the air flow to the vent opening on the controller housing
• This controller is an open-type unit and must be placed in an enclosure to ensure
proper operation and protection.
Mounting Instructions
1. When adding additional units remove the dust cover from the modular
expansion port.
2. Lift the top and bottom retention clips.
Connect expansion unit and press the top and bottom retention clips in to hold the
exapnsion unit in place.

2–3
Chapter 2: Installation and Wiring
SOLO Modular Temperature Controller User Manual
1st Ed. 07/2023
1. Place SLM unit onto the DIN rail.
2. Lower and press firmly at the base of the unit until the DIN clip engages.
rail
SLM units

Chapter 2: Installation and Wiring
2–4 SOLO Modular Temperature Controller User Manual
Controller Dimensions
90.0
3.0
60.03.4
25.2
4.0
3.0
1
2
3
4
5
6
7
8
9
10
3
11
12
13
90.0
3.0
60.03.4
25.2
4.0
3.0
1
2
3
4
5
6
7
8
9
2
10
SLM1
SLM2
[0.99]
[0.16]
[0.12]
[0.12]
[3.54]
[0.13]
[0.13]
[0.12] [0.12]
[3.54]
[0.16]
[0.99]
[2.36]
[2.36]
5
4
SLM1 SLM2
1RUN/STOP
switch
Wiring and
Model name
2Wiring and
Model name DIN rail clip
3DIN rail clip I/O terminals
4I/O terminals LED indicators
5LED indicators Mounting hole
6Mounting hole Specication
label
7Specication
label Extension port
8Extension port Extension clip
9Extension clip DIN rail
10 DIN rail Extension port
11
RS-485
communication
port
N/A
12 Extension clip N/A
13 DC power input N/A

2–5
Chapter 2: Installation and Wiring
SOLO Modular Temperature Controller User Manual
1st Ed. 07/2023
Safety Information
DANGER!
Warning: To minimize the risk of potential safety problems, you should follow all
applicable local and national codes that regulate the installation and operation of
your equipment. These codes vary from area to area and it is your responsibility
to determine which codes should be followed, and to verify that the equipment,
installation, and operation are in compliance with the latest revision of these
codes
Warning: To prevent electric shock, do not touch the terminals while power is
supplied to the controller.
Warning: This controller is an open-type temperature controller, make sure to
evaluate any dangerous application in which a serious human injury or serious
property damage may occur.
Wiring Notes: PLEASE READ PRIOR TO INSTALLATION.
Equipment damage or serious injury to personnel can result from the failure to follow all applicable
codes and standards. We do not guarantee the products described in this publication are suitable
for your particular application, nor do we assume any responsibility for your product design,
installation, or operation.
If you have any questions concerning the installation or operation of this equipment, or if you
need additional information, please call us at 1-800-633-0405 or 770-844-4200.
This publication is based on information that was available at the time it was printed. At
Automationdirect.com® we constantly strive to improve our products and services, so we
reserve the right to make changes to the products and/or publications at any time without
notice and without obligation. This publication may also discuss features that may not be
available in certain revisions of the product.
1. Be sure to tighten terminals to the correct torque of 0.19 Nm. Use solid or twisted wire
from 14AWG to 28AWG.
2. Protect the controller from dust or foreign objects as they can cause the controller to
malfunction.
3. Never modify or disassemble the controller.
4. Do not connect anything to the unused terminals.
5. Make sure all wires are connected to the correct polarity of terminals.
6. Do not install and/or use the controller in places subject to: (a) Dust or corrosive gases and
liquid (b) High humidity (c) Vibration or shock (d) EMI / RFI (e) high temperature.
7. Power must be turned off when wiring, installing or uninstalling expansion modules
(SLM2), or changing a sensor.

Chapter 2: Installation and Wiring
2–6 SOLO Modular Temperature Controller User Manual
Safety Information, cont’d
8. Be sure to use wires that match the thermocouple types when extending or connecting
thermocouple wires.
9. Use wires with correct resistance when extending or connecting a RTD.
10. Keep the wire as short as possible when wiring a RTD to the controller and route power
wires as far as possible from sensor wires to prevent interference and induced noise.
11. This controller is an open-type unit and must be placed in an enclosure to ensure proper
operation and protection.
12. Make sure power cables and signals from instruments are all installed properly before
energizing the controller, otherwise serious damage may occur.
13. To prevent electric shock, do not touch the terminals on the controller or try to repair the
controller when power is applied.
14. Do not use acid or alkaline liquids for cleaning. Use a soft, dry cloth to clean the
controller.
15. This instrument is not furnished with a power switch or fuse. Therefore, if a fuse or
power switch is required, install the protection close to the instrument. Recommended
fuse rating: Rated voltage 250 V, Rated current 1 A. Fuse type: Time-delay fuse. See the
AutomationDirect catalog for the appropriate fuse for the specific application.
16. Note: This controller does not provide overcurrent protection. Use of this product requires
that suitable overcurrent protection device(s) must be added to ensure compliance with
all relevant electrical standards and codes. (Rated 250 V, 15 Amps max). A suitable
disconnecting device should be provided near the controller in the end-use installation.

2–7
Chapter 2: Installation and Wiring
SOLO Modular Temperature Controller User Manual
1st Ed. 07/2023
Terminal Identification
For 4-20 mA sensor input
install supplied 249Ω resistor.
Install jumper when using
2-wire RTD
0 - 10 VDC 4 - 20 mA
2-wire RTD
Thermocouple (Tc) 3-wire RTD
Vinin
Input and Outputs (SLM1 & SLM2
Front Terminals)
Power Input (SLM1 Bottom Terminals)
RS-485 (SLM1 Bottom Terminals)
Sensor Input
1
2
3
4
5
6
7
8
9
+
+
-
-
DC 21.6 to 26.4
24V
0V
Tc
OUT2
OUT1
+
+
+
+
-
-
-
-
+
+
+
+
-
-
-
-
1
2
1
2
1
2
3
1
2
1
2
3

Chapter
3
3
LED Display
and Setup
Parameters
Chapter
Chapter
In this Chapter...
LED Display ........................................................................... 3–2
Parameter List....................................................................... 3–3
Reset to Factory Default ...................................................... 3–17